Source

Key thesis: HyperLight Corporation (PRIVATE, Series B, ~$1.3B valuation) is positioned to become the dominant player in light modulation for AI photonics. They call it "the ARM of photonics."

Key Points

• HyperLight is a private Cambridge, MA company working on TFLN (thin-film lithium niobate) modulators
• Already has confirmed design-in relationships with Broadcom, Marvell, AWS, Meta, and NVIDIA simultaneously
• At ~$1.3B estimated valuation — still pre-IPO
• The thesis: silicon photonics can't handle 200G-per-lane at rack temps >85°C, InP hits thermal limits at 1.6T speeds
• TFLN is the materials science solution for 1.6T and 3.2T era

Our Assessment

• This validates our optical supercycle Wave 4 (CPO) thesis — TFLN is indeed the next integration layer
• Hyperlight is private so not directly investable, but the supply chain IS: NGK (TFLN wafer substrates), UMC (foundry), Jabil (packaging)
• Confirms our NGKIF addition to the watchlist was correct — NGK is the substrate bottleneck
• LITE's EML moat may be time-limited: temple8 is openly questioning the bull case beyond 1.6T cycle
• If Hyperlight IPOs, it would be the most important photonics IPO since Lumentum (2015)

Tickers to research

• HyperLight (PRIVATE — watch for IPO)
• UMC (foundry partner)
• Jabil (JBL — packaging partner)