Serenity@aleabitoredditPost2026-06-21

Post provides fundamental research on OE Solutions, a small Korean optical transceiver com

Post provides fundamental research on OE Solutions, a small Korean optical transceiver company trying to become a player in EML lasers and CPO products, with timelines suggesting growth in 2026-2028 but lacking confirmed customers and yield data.

“I've been getting a lot of questions about OE Solutions (138080) recently. Here's my research/thoughts so far on it: They're a small Korean optical transceiver company, similar to $AAOI. And they've become one the few EML players in the world (eg. $COHR, $LITE, Mitsubishi, Source, Sumitomo), with scarce 100G EML laser capacity for 800G/1.6T. OE appears to be trying to make the full transceiver, not just the EML. They also have finished ELSFP CPO products, with UHP CW lasers, which is sampling Q3. Likewise, OE also seems to be building out the full ELSFP, rather than selling CW laser dies, so that's more market share. So you can think of it as Korean AAOI but EML instead of CW, and less capacity/qualifications. And playing catch-up to the rest of the world. However in terms of timelines: 1. 23dBm cooled ELSFP samples start in Q3 2026 2. Sales base for 800G, and 2027 1.6T "full force" 3. Late H2 2027, H1 2028 onward probably their ELSFP enters the volume production. And it seems they're working on 200G EML capability from their investor snipper 2025 OE IR snippet referenced “100GBaud EML / 200G PAM". This seems promising given their IP/demos. ELS has just been unveiled recently, sampling starts Q3. 800G/1.6T Optical transceivers are also likely 2027. So this is basically Korea's sovereign photonics player, playing catchup to $LITE, $AAOI, and the bigger players. (Disclosure: I have positions in OE Solutions (138080). This is fundamental research for informational purposes, not financial advice). As for OE solution valuations: 1. Doesn't seem like there's confirmed customers yet for these growth verticals. 2. Probably not many people understood what they're building toward yet. 3. Yields data kinda uncertain 1. Customers: We're actually in a major EML/CW laser shortage, so any independent capacity will be sought after. I personally don't think they'll have a hard time finding customers here. I would assume anything they make might get bought out and would get extra support from Korea. 2. Institutional support: Probably not much since it doesn't meet threshold for many US institution given MC size + KR listing. I also don't think many people understood what they're building yet. 3. Yields/Capacity: OE's disclosed wafer/module utilization is low (i remember was around 31% underutilized off the top of my head), so there's enough material revenue they can generate before they need to spend on capex. I'm also not sure about EML/CW and other yields. Probably need to go ask the company. Is this some random crap co? No. It's been doing optical transceivers stuff for more than 20Y, has R&D in the U.S. and Netherlands. But their entire AI growth vertical seems to happen next year, and hinges mainly around capacity/yields. And I personally think the EML/CW tech is probably worth a lot more than their current MC, if it were an acquisition target. Especially from a larger player that wanted to vertically integrate EML for pluggables and CW lasers for CPO. Markets are probably waiting on more certainty around qualifications after Q3 sampling or earnings projections announcements. TLDR on thoughts: Some of my friends discussed this last year, was probably way too early. Saw it got many comments 2 months ago, still too early. I still think now is early, but later in Q3-Q4 might be more interesting. I personally think it's a lot higher risk than a major CPO player like $SIVE, that's embedded in Ayar, $JBL, $GFS, and many other hyperscaler suppliers. Which also has Win Semi and others de-risking volume ramp. As OE Solutions looks like a new player trying to build out an $AAOI for the optical transceivers but sovereign EML and CW laser production for CPO products. And there's a lot of answered questions around customers + volume ramp, which presents material risk. But if you believe Korea can build out an 800G/1.6T transceiver EML supply chain and ELSFP with CW lasers. With OE Solutions, it might be worth taking a look into. Still researching the company tho, just initial thoughts.”