Veeco is an AI pick-and-shovel play ramping from a 2025 trough, because its laser spike annealing tools are tool-of-record for gate-all-around transistors at TSMC, Intel and Samsung. Requalification is costly, so those wins lock in demand as fabs ramp, and its annealing market should grow from ~$600 million to $1 billion-plus. Ion beam deposition, HBM packaging and the Axcelis merger add growth, with FY2026 guidance of $740-800 million revenue. The key risk is China's SAMR blocking the merger. … Show more

Veeco is benefiting as InP laser capacity expansion turns into actual upstream equipment orders. A global optical and photonics company ordered its LUMINA+ MOCVD system to make InP lasers for datacom, after a series of recent orders, as major optical suppliers expand InP laser capacity. LightCounting, cited by Veeco, expects optical transceiver sales to reach $39B in 2026, up 53%. This is not proof of a severe InP laser shortage, but suppliers are adding capacity ahead of a potential bottleneck. … Show more

Optics and photonics should be among AI's biggest winners as faster GPU networks need optical connections that suppliers cannot expand quickly enough. Lumentum says some components are sold out through early 2029; Sivers is investing $30M to target more than 100M lasers a year, with operations expected in Q4 2027. Potential US restrictions on Chinese transceivers could reshape supply in 2027. Applied Optoelectronics and Sivers are the favorites. x.com  x.com 

AI bandwidth demand still favors Coherent and Lumentum, but tight customer financing can delay orders and lasting valuations need durable profits. A model provider losing share need not reduce total bandwidth use. Coherent could beat and raise guidance; Lumentum may only meet estimates this quarter, improving next quarter. If margins partly reflect scarce indium phosphide, added supply will test whether upgrades, volume and cost gains sustain earnings. These earnings calls remain forecasts. … Show more

Aixtron and Veeco stand to benefit because indium phosphide is the real bottleneck in optical interconnect, one nothing else can replace. InP looks set to stay structurally short in both demand and supply over the next three to five years, a theme the market has not yet fully priced, which makes both equipment makers attractive. x.com  x.com 

Aixtron's position is durable but not unconstrained, with optical lasers carrying the near-term case: it holds over 90% of InP MOCVD and every high-speed laser traces back to its reactors. Its share will likely erode toward 65-75% by decade-end as Veeco improves and Chinese buyers diversify, manageable if the InP tool market doubles or triples. The bigger near-term limit is capacity, as Aixtron reallocates existing lines rather than adding aggressively. 800V DC power demand looks further off. … Show more

InP substrate demand and pricing still support the AI optics supply chain. Yunnan Germanium reports higher InP volumes from AI data centers and optical communications, plus higher prices. Q3 revenue rose 134.6% year on year, near AXT's guided 136%, but also includes germanium. IQE's H1 photonics grew 45%, partly from US defense funding. AXT's $66m Q3 guide covers only licensed exports or sales needing no license; a miss would more likely reflect licensing. x.com 

The Corgi Lithography & Semiconductor Photonics ETF offers broad exposure to the photonics stack as AI infrastructure increasingly depends on moving data efficiently between chips, racks and data centers. The actively managed fund spans lithography, equipment, inspection, photonics and optical networking rather than one niche, with $464M in assets and a 0.35% expense ratio. Top holdings include TSMC at 11.3% and ASML at 9.7%, plus optical names such as Lumentum, Corning and Coherent. x.com 

Lumentum is the only volume supplier of EML lasers for 1.6T optics, capacity is sold out, and indium phosphide fabs do not scale overnight. Qualcomm and Corning partnered with it on 1,060nm VCSEL chip-to-chip links targeting about 10 Tb/s. Revenue grew 109% and it trades at 30.6x forward earnings with $1.07B of net cash; a one-time $7.8B non-cash convert charge hid profitable operations. Risks are convert dilution and Coherent and Broadcom adding InP lasers before the shortage eases. x.com 

Lumentum, the largest indium phosphide laser maker and supplier of the ultra-high-power laser in NVIDIA's Spectrum-X CPO switch, has a lot to gain from the silicon photonics roadmap. Its indium phosphide is sold out for years, which explains why its SEMICON Taiwan talk promoted gallium arsenide VCSELs for scale-up, rating them strong on 5 of 7 axes. VCSELs are its only incremental revenue in that period, even though they could displace its InP business. x.com  x.com