Good day, everyone, and welcome to the Lumentum Holdings Fourth Quarter Fiscal Year 2025 Earnings Call. [Operator Instructions] Please also note today's event is being recorded for replay purposes. [Operator Instructions] At this time, I would like to turn the conference call over to Kathy Ta, Vice President of Investor Relations. Ms. Ta, please go ahead.

Thank you, Reagan, and welcome to Lumentum's Fiscal Fourth Quarter and Full Year 2025 Earnings Call. This is Kathy Ta, Lumentum's Vice President of Investor Relations. Joining me today are Michael Hurlston, President and Chief Executive Officer; Wajid Ali, Executive Vice President and Chief Financial Officer; and Wupen Yuen, President, Cloud & Networking. Today's call will include forward-looking statements, including, without limitation, statements regarding our future operating results, strategies, trends and expectations for our products and technologies that are being made under the safe harbor of the Securities and Litigation Reform Act of 1995. These statements are subject to risks and uncertainties that could cause actual results to differ materially from our current expectations, particularly the risk factors set forth in our SEC filings under Risk Factors and elsewhere. We encourage you to review our most recent filings with the SEC, particularly the risk factors described in our most recent 10-Q and in our 10-K for the fiscal year ended June 28, 2025, to be filed by Lumentum with the SEC. The forward-looking statements provided during this call are based on Lumentum's reasonable beliefs and expectations as of today. Lumentum undertakes no obligation to update or revise these statements except as required by applicable law. Please also note that unless otherwise stated, all financial results and projections discussed in this call are non-GAAP. Non-GAAP financials have inherent limitations and are not to be considered in isolation from or as a substitute for or superior to financials prepared in accordance with that. You can find a reconciliation between non-GAAP and GAAP measures and information about our use of non-GAAP measures and factors that could impact our financial results in our press release and our filings with the SEC. Lumentum's press release for the fiscal fourth quarter and full fiscal year results look and accompanying supplemental slides are available on our website at www.lumentum.com, under the Investors section. We encourage you to review these materials carefully. With that, I'll turn the call over to Michael.

Thank you, Kathy, and good afternoon, everyone. Lumentum is at the forefront of the cloud and AI revolution, which is driving rapid growth in the advanced photonics markets we serve. As AI becomes central to our customers' business strategies, demand for optical hardware and bandwidth is growing dramatically. Our innovation is driving the next generation of AI infrastructure with technologies such as 200-gig EMLs, 1.6T transceivers, optical circuit switches and ultra-high power lasers for co-packaged optics, all of which are essential for building scalable, energy-efficient systems. Our years of optical engineering leadership provide us with a significant competitive advantage as AI architectures evolve. These new technologies are projected to become multibillion-dollar markets within 5 years. With a uniquely differentiated portfolio, Lumentum is positioned to capture significant value from this inflection, driving strong revenue growth, expanding margins, increasing profitability, all of which are elements of the long-term financial model we laid out in April. Cloud revenue is growing well over 20% annually. [Combi] gross margins are set to surpass 40%. And through a combination of high-value products and disciplined cost management, we are targeting operating margins above 20%. The slope of our cloud-facing revenue is increasing. We now expect to surpass $600 million in quarterly revenue by the June 2026 quarter or earlier. Let's turn to our fourth quarter results. In early June, we raised our fourth quarter revenue and EPS outlook. Our cloud and networking performance drove Q4 revenue above even the high end of our revised expectations. Fourth quarter revenue from our Cloud & Networking segment increased 16% sequentially and 67% year-over-year, led by exceptional demand from hyperscale cloud customers. The outperformance was largely driven by our cloud-facing components and transceiver product lines. In Components, we achieved an all-time high in EML shipments, nearly doubling the revenue compared to…

Thank you, Michael. Fourth quarter revenue of $480.7 million and non-GAAP EPS of $0.88 were both above the high end of our revised guidance ranges. GAAP gross margin for the fourth quarter was 33.3%, GAAP operating loss was 1.7% and GAAP net income per share was $2.96. Turning to our non-GAAP results. Fourth quarter non-GAAP gross margin was 37.8%, which was up 260 basis points sequentially and up 1,000 basis points year-on-year due to better manufacturing utilization and favorable product mix as a result of increased Datacom laser shipments. Fourth quarter non-GAAP operating margin was 15%, which was up 420 basis points sequentially and up over 2,000 basis points year-on-year, primarily driven by improved Cloud & Networking profitability. Fourth quarter non-GAAP operating profit was $72.3 million, and adjusted EBITDA was $98.7 million. Fourth quarter non-GAAP operating expenses totaled $109.3 million or 22.7% of revenue, an increase of $5.9 million from the third quarter and an increase of $7.9 million from the same quarter last year. This growth reflects annual employee cash incentives tied to company performance, along with ongoing investments to scale our operations in support of expanding cloud opportunities. Q4 non-GAAP SG&A expense was $41.7 million. Non-GAAP R&D expense was $67.6 million. Interest and other income was $3.5 million on a non-GAAP basis. Fourth quarter non-GAAP net income was $63.3 million, and non-GAAP diluted net income per share was $0.88. Our fully diluted share count for the fourth quarter was 72 million shares on a non-GAAP basis. Turning to the full year results. Fiscal '25 net revenue was $1.65 billion, which was up 21% from fiscal '24. GAAP gross margin for fiscal '25 was 28%. GAAP operating loss was 10.9% and GAAP diluted net income per share was $0.37. Full year fiscal '25 non-GAAP gross margin was 34.7%, which…

[Operator Instructions] Reagan, let's begin the Q&A session.

[Operator Instructions] Our first question comes from Simon Leopold of Raymond James.

First one, I wanted to talk a little bit about the OCS award. My recollection is that you previously suggested you'd see first revenue in the December quarter. So this is 2 quarters earlier than what we were thinking and we're thinking one customer, not two. So I'd love to get an update on how to think about the trajectory in that should we be envisioning a very gradual ramp? How should we think about the trajectory and the potential of this new product category?

Simon, thanks for the question. Yes, I think we're doing a bit better than we expected, certainly in the customer count. And now with the third customer coming online, we feel pretty good about things. The way I would characterize it is, I think these current quarter, next quarter and the December quarter are still ramping. We're ramping because we're building our capacity in Thailand to support the customers. I think that we'll start to see more meaningful revenue, meaning very, very significant revenues in Q1, Q2 and then certainly in the back half of calendar 2026. So it is a ramp. There's some gradualness to it. There's a couple of inflection points. The first inflection point is probably early in '26, but then a more meaningful inflection point in the back half of '26. Right now, we're honestly limited by how many we can build, right? We're trying to ramp this thing very quickly. We see a tremendous level of demand, but we are limited by how much we can supply.

And then as a follow-up, I wanted to check in on the CPO opportunity as well. So that sounds like it's progressing. Last we spoke, it sounded like you were the only approved supplier in the ecosystem for the high-powered laser. Wondering how you're thinking about your position in that market in terms of quantifying as well as your ability to remain a sole source supplier? How is the competitive landscape?

Yes. Simon, you and I talked about it. We feel good about our ability to maintain a competitive moat here for 2 reasons. One, there's a unique power level that this laser throws off. But more importantly is the reliability. And we're able to translate a lot of what we've done from undersea lasers and Raman pumps into this particular product line is develop it. It's leveraging a lot of the same development concepts that we had there. So we feel good about the competitive modes. You called it out well. I think we said in the prepared remarks, we would expect meaningful revenue from this again in the second half of calendar 2026. We are seeing -- we talked about the order, a very significant order. We are seeing early shipments. So at least as far as we know, we're sole-sourced. We believe we have a good competitive mode that will keep us in that position.

Our next question comes from Tom O'Malley of Barclays.

So it sounds like the trajectory to the $600 million is moving a little bit forward to the fourth fiscal quarter. Maybe you could walk through the contributions to the $600 million. In the quarter, EMLs were a bit better, but modules were also good as well. Maybe walk through the moving parts of where you see the upside to get you to that $600 million.

Yes, Tom. I mean, I think number one, we actually expect continued strength in our components business. Our components business carry us pretty significantly this quarter, and we actually are pretty excited about that over the balance of the fiscal year. The cloud modules will definitely be a step-up. I think we had a really big step-up this quarter, a 50% sequential gain in terms of top line. I think we'll hit a little bit of an ebb here in the next quarter, but then we'll see a pretty dramatic acceleration in cloud modules in our December quarter, March quarter and June quarter. As we said a second ago, we also expect OCS to layer in. We start to see revenue -- meaningful revenue contributions in the first half, significant revenue contributions for OCS in the second half. Still strength in our transport business. So it's multifaceted, but if I was going to depict the 2 or 3 areas, it would certainly start with components. Cloud modules will be strong. And then I think we're going to see that revenue contribution from the optical circuit switch.

Helpful. And then I kind of want to add a little bit of an off top. I do. So I just wanted to address a press release that came out in the last week. So Apple was talking about investment in the U.S., and there was a press release specifically out with one of your competitors with their lasers out of a U.S. manufacturing site. Traditionally, you guys have always been kind of first to innovate there. I was curious, do you guys see a future in which that type of business becomes more significant for you? Or do you think that this is an announcement that kind of is talking about existing infrastructure that's in place versus new opportunities that are kind of burgeoning?

Yes. I mean, it's an interesting one. We -- in the macro, I think, face ID and 3D sensing will be a minimal part of our business on a go- forward basis. The main story, Tom, as you well know, is everything we're doing in the data center with Wupen's business. That being said, interestingly, we feel like we're picking up share and decent gross margins on this cycle. And then there's some design changes that are happening in the next couple of calendar years. And to your point, we feel like we have an innovation lead. So I was on the other side of this, as you know, in Sherman. And you're right, Lumentum has a history about innovating. And as long as we kind of keep that innovation engine up, I feel better than I have in a while in terms of gaining share in that business and actually increasing top line and margin in that business.

Our next question is from Samik Chatterjee of JPMorgan.

Congrats on the results here. Maybe for my first one, Michael, if I can press you a bit on the timing of the $600 million revenue guide here for fiscal 2Q '26 because you did have a strong sort of $50 million plus quarter-over-quarter increase into the June quarter. And now you're guiding for September to like a $40 million increase at the midpoint, $40 million or more. And I'm just wondering, given your comments about acceleration in terms of Datacom chips with more capacity coming on and there's the cloud-like business as well accelerating into December and March. Is there any other part of the business that necessarily slows down to sort of push that time line to the June quarter? Or is there a potential of achieving that target in the March quarter itself? I have a follow-up.

Yes, very good question. I think there was a very key parenthetical phrase that we had saying the June quarter or earlier. That was -- that's an important phrase. Look, we feel pretty good about the business across the board. I think we're still in the early innings of our cloud module business. We feel like we're just beginning to scratch the surface in terms of picking up share on that. We talked about OCS in some of the previous questions. We really, really feel good about that business. You called out in your comments on components, that's going gangbusters. Outside of our Industrial Tech business, which has obviously had some headwinds in Wupen's platform, I don't think there's a single sector right now that I could point to that say it said we're going to be down. So our slope is definitely up, and you can kind of draw your own conclusions as to where you think we end up, but we definitely are on a pretty good run at the moment.

Got it. And for my follow-up, thoughts. Yes. Yes, please. And my follow-up was really on sort of any thoughts you have on the semiconductor tariffs or Section 232 investigation, whatever you want to call it, in relation to sort of speculation around 100% tariffs on semiconductors given your fabs in Japan. And I did see you made an announcement of additional investment here in the U.S. advanced optics and how are you thinking about the likelihood of being exempted from any potential tariffs on the semiconductor side given your location of fabs? Any thoughts on that would be useful.

Yes. I mean, Samik, as you can see and appreciate, during the quarter, the tariff situation is pretty fluid. And there's -- a lot has happened even after we announced our updated guidance in June. But having said that, we've gone back and taken a look at the new regulations that have come out and taken a look at the exempted categories that are in the appendix to that new guideline. And we've determined that our products are exempted from any of the tariffs that would be applicable in that new guidance. So we're fairly comfortable that we will not be impacted. But like I said, things are fluid. We thought at the beginning of Q4, we would have 100 basis point, up to 100 basis point negative impact from tariffs. And yet in Q4, we actually had minimal impact of tariffs. Even in Q1, we put in a little bit just in case something new pops up in the remaining part of August and September, and we'll see at the end of the quarter where that ends up. But for now, no material changes in our business operations or the impact from tariffs would be our view.

Our next question is from Blayne Curtis of Jefferies.

Ezra Weener on for Blayne. I guess a 2-parter instead of a follow-up. But first, you talked about a big 200G EML order in December and then also discussed that you're going to see a big ramp next year in 100G and 200G. Can you talk a little bit about what you're seeing timing-wise between the 2 of those in that transition? And then the follow-up question is kind of your lead times and visibility into both demand in those ramps and kind of inventory for both of those?

Yes, I'll take that and then I'll have Wupen add some color. So first thing that I would say is, obviously, the 100-gig is run rate. We're shipping that right now. It primarily goes into 800-gig transceivers, and we feel like that is continuing to go well. We're seeing those numbers climb. We're seeing our EML shipments on 100-gig continue to climb. 200-gig is more associated with the 1.6T, and we're starting to see the early ramp of 1.6T. So this now is related to our Components business. I think our module business as it pertains to 1.6T would feather in next year, but we are starting to see early, early shipments of 200-gig per lane into the 1.6T transceivers. That's additive business. So we see that on top of what we already have for the 100-gig, the 100-gig will continue to climb, and then the 200-gig will layer in on top of that. So we talked about through the questions and even in the prepared remarks, the strength in our components business. We have a baseline of 100-gig. We have a nice layering of 200-gig per lane and then we layer on top of that this co-packaged optics opportunity, which we feel really, really strongly about. So there's a nice effect here in our components business that's obviously a nice margin driver for us. Wupen, do you want to comment a little bit on the dynamics?

Yes. Thank you, Michael. Yes, definitely, I think it's really important to keep in mind that there's no kind of transition down and up kind of situation. It's layered on top of. So 800G is running very, very strong. Most hyperscalers are still on the 800G platform and for probably the next couple of years at a minimum. 1.6T is just getting started. So it's really additive to our revenue going forward. And then our visibility into the future business actually is really good. We have 6 to 9 months of visibility, if not longer. And then the general consensus, what we can see in the market is that we are in a supply-constrained situation. And therefore, we would anticipate the laser demand will continue to be very, very strong and we continue to see very good visibility going forward. And of course, given that situation, inventory is very low. And we're basically shipping everything that we can make and try to keep our customers satisfied for the deployment.

Ezra, did you have a follow-up question?

No, that was it, asked my 2.

Okay. All right. Thanks, Ezra.

Our next question is from Christopher Rolland of SIG.

This is [Aaron Actel] in for Chris Rolland. On the EML competitive landscape, there are a few e-mail players out of Japan in addition to your largest competitor. How do you believe you are positioned to retain your edge and leadership here?

Yes. Look, I think there are 2 dimensions in the EML business. One is certainly performance. And I think if you look at our design, it is the best performing. And where that translates is in module yields. Our customers typically report a significantly higher yield on their cloud modules using our EMLs over competitors. That allows us some pricing latitude, which has been super favorable. Wupen has been able to use that to great effect. We feel like we talked about 200-gig. We feel like we're leading on technology innovations, 200-gig CPO, as Wupen described in the last call, these are all layering on top of each other. The second element is obviously capacity. And we are the biggest supplier in terms of capacity. We have -- our fab in Japan is outputting more EMLs than I think, any other location. So we really feel good about our ability not only to lead technically, but also to lead operationally, and that's giving us a pretty nice tailwind as we head into the next handful of quarters.

Do you have a follow-up?

Yes. At your investor briefing at OFC, you had a slide where you showed your segment mix at over $500 million of revenue. And at that level, telecom and Datacom, both represented 45%. And given the September guide, how are you tracking to that mix?

We're tracking pretty well in line. Datacom is probably running a little bit ahead of telecom, not really demand determined, more related to some of the supply constraints we have on the telecom side where we -- that we are looking to close on. So I think from a demand standpoint, the 45% and 45% are correct. But in terms of what we're actually shipping, we're a little bit more tuned to Datacom because some of the capacity improvements on the telecom side still need to happen for us.

But there is an underlying -- the demand is really mostly coming from the hyperscalers on the cloud. So even though the customers are traditional telecom customers, but the source of demand is really from the cloud. I think that's very important dynamics that we should consider our business going forward.

Thank you. Reagan, we'll take our next question.

Our next question is from Meta Marshall of Morgan Stanley.

Great. Apologies for the background noise. Just a couple of questions for me, and I'll say them both at once. Just in terms of kind of the -- you had a lead customer on the transceiver side. You clearly talked about kind of supplying the additional 2 customers this quarter. Just how should we think about kind of the ramp of additional customers just given kind of how strong the demand of customer one has been? And then maybe just as a second question, particularly strong gross margins this quarter. Just trying to get a sense of like directionally, is that more mix? Is it more yield improvement? Just how to kind of think about kind of capacity for that to increase further?

Yes, Meta, thanks for the question. Look, on cloud modules, we're obviously trying to be disciplined. We're continuing to focus on opportunities that yield the highest margins for us. And we also are somewhat constrained in terms of our ability to produce. So we are focused on these 3 customers. Our capture rate of additional customers probably in the near term will be modest. I think we're going to continue to look at these 3 guys, both in terms of the high-value SKUs that we can deliver to them. And again, just because our capacity, both from an engineering capacity and from manufacturing capacity is somewhat constrained. That being said, we still expect to grow and actually grow very significantly in that business over the coming handful of quarters. The second part of the question was...

On gross margin.

On gross margins. Yes. Look, it's a big focus for us. I think we saw improvement on mix. Mix was some of it because of the components business, but a lower piece of our business, lower margin piece of the business and cloud modules contributed about half the growth. And still, we showed margin improvement. And we continue to be on that trajectory. We're spending a lot of time, Wajid and I, together with Wupen and his general managers are very, very focused on cost improvements of all of our products, pricing when we can apply leverage when it's appropriate. And we would expect to see some more significant gross margin step-ups in the ensuing quarters. But this is a big, big area of focus for us.

Our next question comes from Ryan Koontz of Needham & Company.

Great. I want to ask about the telecom side of the world, obviously, ZR is the main driver there. I wonder if you have any commentary on how fast you think that market is growing? Can you expand on your opportunities in that market from a component perspective? And how you think about that business over the next 12, 18 months?

Yes. I mean, it's been a big story for us. I'll let Wupen add color here. But obviously, our narrow linewidth lasers, which are a key component in ZR and ZR+ modules have done very, very well. We said in the prepared remarks, we're capacity limited. We're sold out for really the balance of the fiscal year, to be honest with you, at this point. So that has been where we play. Our actual modules have not done as well where we've actually tried to sell ZR, ZR+ modules ourselves. We've not done as well. It's definitely a margin hit to the company. So we are focusing where we can on selling components into the DCI market. I don't know, Wupen, do you want to add some color on how you're thinking about it?

Sure. First of all, I think the ZR market is growing very rapidly. There's a very, I would say, a general trend now for most of the hyperscalers to resort to the ZR kind of architecture, moving away from traditional transponder-based architectures. So we think that as a market, the ZR pluggable modules is a long-term trend that will continue to go up. From a growth rate perspective, we're seeing -- we're forecasting roughly about 30% volume annual growth rate, number one. Number two, that with the DCI traffic now growing rapidly to carry the AI traffic. We see the 800 ZR now are starting to be of interest to multiple hyperscalers. And as Michael said, we're not so focused on the module side, but we're definitely looking for opportunities on the component side to participate continuously going forward in the 800 ZR market as well.

Do you have a followup?

Yes. Just a quick question about transceivers and share for EML designs versus VCSEL and silicon photonics. And do you pick up any share shifts from a demand perspective going on with this migration to higher speeds maybe due to the AI infrastructure?

Yes. I mean, again, I'll let Wupen add color here, Ryan. But we're -- we keep hearing noise of this. And frankly, we're not seeing it. I mean we are sold out on our EMLs, again, for the balance of the year, where customers are coming to us for allocation. We're actually just trying to pick and choose because we only have so much capacity and it's actually sold out. The silicon photonics is doing well. There's no doubt about it. It's layering in, in the transceivers into the data center, but it has not impinged on EML demand in any way. I mean, how are you thinking about it? As you think about 1.6T and beyond, how are you thinking about these 2 things feathering?

Yes. Thank you, Michael. So I think number one, as we talked about earlier, right, there is a major supply constraint. So in the sense that silicon photonics versus EML, it depends on what laser you can get. That would dictate your solutions that you would be able to deploy. So that actually is really happening now in the 100G per lane speed products. Now going forward, 200G per lane 1.6T is just getting started. Certainly, there are equal amount of EML-based design and silicon photonics-based design. I think similar dynamics will play out. I think we're in a very early phase of 1.6T. I would say that probably at this point, it's both technologies are being deployed. So again, I think the supply situation will determine to a large extent what technology will be used in reality.

Our next question comes from David Vogt of UBS.

I have 2 questions. So maybe, guys, can you talk about where you actually stand from an EML wafer fab capacity? I know in the past, you've talked about expanding capacity by, I think, upwards of 40%. And I think I just heard Michael say that we're completely sold out. So where do we stand today? And how do you think that kind of plays out? And then along those lines, the second question is related. When you think about the pricing dynamics, given the limited supply of wafer chips going forward, how much should we think about that being an impact on gross margin going forward from a pricing perspective? Obviously, you need to be careful in terms of how you price, but just trying to get a sense for how should we think about that as we go into fiscal '26.

Yes. I think, let me talk a little bit about the capacity. We are still transitioning from 3-inch to 4-inch wafers. So that's something that's undergoing. We think we can bump our capacity in completing that transition. And that will give us another leg up in terms of capacity. We definitely feel like the economics are in our favor, right? There's limited supply. There is a lot of demand. And we do feel like there's a price lever. We've been very careful because there's only a handful of customers that are there. But as we think about the situation over the next handful of quarters, I do think Wajid and Wupen are thinking about how to make this work out more equitably, right? Given that we have finite capacity and a lot of demand, price, I do think will become more of a meaningful discussion in the next handful of quarters.

And David, just to be clear, those pricing discussions are not incorporated into Michael's earlier comments around 40% gross margins as well as our comments about achieving $600 million of quarterly revenue, pricing increases would be upside to that.

I will also comment that the capacity ramping continues. We have made an investment into the fab side, and we believe a strategic investment for us. So we are looking at a few times of the capacity over the next several years as we transition also over to the 6-inch wafer indium phosphide substrates as well.

Great. That's helpful. Kathy, can I sneak one more in?

Sure. Yes, why don't you go ahead?

Just on OCS, obviously, it's exciting to hear about a second customer and then a third customer coming online. How should we think about sort of the arc of the profitability of that particular product offering as it expands from 1 hyperscaler to 2 to 3 into next year? Is this kind of a corporate average kind of product cycle? I'm just trying to think how we should think about what the impact is in '26 and '27 from OCS?

Yes. It's significantly above corporate margin averages. So it will be most definitely be accretive. And there are some -- with any factory, you've got ramps and how we absorb the factory, but assuming a reasonable level of volume and reasonable level of volume, as we've described, starts really in the first half of calendar 2026. This will be accretive to our margin line.

Our next question is from George Notter of Wolfe Research.

I was curious about just the capacity expansion down at the Nava facility. Any insights you can give us there in terms of scale, capacity, new additions would be great.

Yes. We are -- obviously -- we've built a new building in Nava, that building has 3 floors. We've actually started to outfit the first floor, and we feel like even given the volumes that we're seeing from our hyperscale customers, in dealing with that first floor. That should be able to, one, meet the demand levels that we're seeing and two, give us some flexibility. As you know, George, right now, a lot of our cloud modules are coming from China. That will give us some flexibility from a manufacturing footprint to move to Thailand and help should the tariff situation change. So it is early innings. We'd expect that to come online sometime next year where we have that additional capacity available to us from a manufacturing standpoint.

Got it. Super. And then one other quick one. I think you mentioned at one point, you were looking at doing some portfolio cleanup or adjustments. Is that something that you are indeed looking at? Is there any time lines or things you might be particularly focused on there?

Yes. We'll -- we announced some changes, I think, in my first earnings call around metrology, x-ray and [indiscernible], we shut some of those businesses down. This is an ongoing process. We actually -- as you know, we're just starting our fiscal. Wajid and I, have set the AOP. There will be some portfolio management that will be part of that, and we'll be talking about that, I think, in subsequent calls. But it's an important tenet of our strategy is to really try to focus on our cloud networking business under Wupen as much as possible and really figure out the parts of his portfolio that are going to be the most profitable and lead to the longest-term growth. So we will have some discussions, I think, in the next couple of calls around some portfolio management moves that we are in the middle of at the moment.

Our next question is from Vivek Arya of Bank of America.

Michael, how large is the cloud module business now? And how large does it need to be for your quarterly sales to get to $600 million. And at that point, will it be levered to a single customer? Or will it have multiple customers?

Yes. I mean I'll let Wajid and Kathy sort of describe the size. I mean, I think we discussed it with you, Vivek, at the last conference, this -- the number went up 50%, and we would expect it to continue to grow, as we said in the prepared remarks. I think that from here, it doesn't actually need to grow a whole lot for us to get to the $600 million number. Previous caller said, look, you guys are at $525 million at the mid, right? It's another $75 million of incremental growth. And we've said that we would expect components to contribute to that. We would expect OCS to contribute to that. So I do think that this cloud module business will grow. It is continuing to grow. We are being disciplined about it. Wupen is being super smart about which opportunities he takes and which he doesn't. We are expecting revenue contributions from our largest customer, from our second largest customer, and frankly, from our third largest customer. But I think it was Meta that asked, at least right now, for the next handful of quarters, we do not expect to add customers beyond these 3.

Does that give a follow-up question?

Yes. So a follow-up on gross margins. Wajid, how are you thinking about gross margins heading into September? And then when you do get to the $600 million quarterly run rate, do you think gross margins can get close to 40%? Or is there a different mix that we should be thinking about?

Yes. No, Vivek. So we've been able to improve our gross margins sequentially for the last number of quarters. The most recent quarter, we were at 37.8%. We'll probably see a little bit of a nudge up to that moving into Q1. As we approach the $600 million of revenue, like Michael mentioned, we don't actually need a lot of growth in cloud modules to get there, probably in the range of $20 million or $25 million is about all we need in order to be able to get to the $600 million target. So because of that and the focus really being on the components business, getting us to $600 million, we should see a nudge-up again on gross margins, getting us close to the 40% that we outlined in the April OFC presentation where we said that we thought at $600 million would be between 37% and 40%. And just given the mix that we're seeing in front of us, we should be at the higher end of that range when we get to $600 million. You've got to remember, Vivek, one of the things that's actually a headwind to our margins right now is that we're spending about 150 basis points every quarter just on NPI. And so as we're ramping these second and third customers that we're not recognizing revenue for at this point in time, both in cloud modules and OCS, there's a significant amount of NPI costs that are not being absorbed by inventory right now. And so as the business grows, some of that NPI cost as a percentage of revenue should come down. So that will certainly help us as well.

Thanks, Vivek. I think we have time for one more question, Reagan. So if I can squeeze in one more question and then pass the call back to me.

Our last question for today's call is from Ananda Baruah of Loop Capital.

Yes. Appreciate it. I guess maybe this could be Michael and Wajid, just kind of sticking there. Is there a sort of theoretical mix of transceivers of the modules relative to the components that you think about as you've seen, Michael, the last handful of months, sort of this new model to come into shape. Would love to get any thoughts there, recognizing it could change over time, but just whatever your current thoughts are.

Yes. I mean I don't know that we think about it that way. What I would say is we are going to continue to be selective in the growth in the cloud modules that we take on. We are limited to these 3 customer engagements we have. And within those customer engagement, we've asked Wupen to be very smart about which of these opportunities he prosecutes. So we expect to continue to grow this business, and I would say, grow it relatively significantly throughout this fiscal year. And as Wajid just elucidated, we do expect to grow gross margins as well. This will be a gross margin drag. I mean, I think in our best case, we've said to people, we expect this business to be maybe pushing 30% gross margin in the asymptote. We will see a drag from it. So we want to limit how much we do there. We want to focus on the components, focused on OCS, focused on the CPO opportunity. Beyond that, obviously, Wupen is keenly, keenly focused on scale up, which is another component opportunity. But we do think that this could help us from a cash flow perspective, and from a revenue growth perspective, at least for the next 4 to 8 quarters. Wajid, do you have any additional color?

No, I think that's right. At least as it relates to the $600 million a quarter, thinking about it as being about 15% to 20% of company revenues is probably the right level. And then network interconnect -- or sorry, cloud interconnect, our Datacom chip business, really growing with our supply. And so as the supply improvements happen, 3-inch [indiscernible] that Michael talked about as well as some new CapEx that we've got coming in, both in our fiscal Q3 and Q4, that business should naturally grow along with the 200G EML. So the cloud interconnect business, the Datacom laser business will be larger as part of the $600 million mix than our cloud module business will be.

And also, right, I think the component business is not just the cloud chip business, right? It's also other laser business, which is also going to grow meaningfully, right? So I think the future of the growth, again, in the context of $200 million will be some portion coming out of the module as what you talked about and Michael talked about, but also a meaningful chunk coming from component, not just cloud component per se, but also so-called telecom component that goes into DCI that also supports the Al machine growth. So all these areas are going to be growing and then giving us an uplift of gross margins.

Thanks, Ananda. Do you have one quick followup.

I guess the question would be just OCS in terms of materiality, I think Michael made comments back at OFC that in some context that it could be a noticeable product line. Just wanted to sort of get his context about how noticeable it could be over time?

Yes. I mean, look, we are very optimistic that this will be a multi-hundred million dollar contributor for us. So what -- in what time frame, it's becoming increasingly [sharplingly] clear that it's sooner rather than later. But we haven't put a time frame on that. But certainly, the opportunity for us is measured in multiple hundred millions. And we feel pretty good about that just being able to step into that TAM in a meaningful way.

Great. That's all the time we have for questions. Thank you. We look forward to connecting with you at upcoming investor conferences and meetings this quarter. And with that, I'd like to thank you all for joining us today.

Thank you. That will conclude today's call. Thank you for your participation. You may now disconnect your lines.