Optical Network Insight

Coherent 1.6T SiPh; NVIDIA $4B CPO; Tower $1.3B SiPho; XOptics MSA; 1.6T/LPO ramp amid shortages/InP bottlenecks. Bernstein confirms connectivity as new bottleneck, CPO post-2028, LPO/NPO transition. POET's hybrid InP/SiPho interposer gains traction with Lumilens order. LightSpeed Photonics introduces 400G near-packaged optical interconnects (5x power reduction vs pluggables), adding to CPO/LPO debate. Nvidia $4B EML lockup and McKinsey shortfall (40-60% for 800G through 2027) underscore supply crisis. Ciena Q2 FY26: record revenue $1.57B (+40% YoY), cloud revenue up 70%, 20 new WL6e customers, first multi-rail HyperRail order from hyperscaler, DCOM ramp with Meta and second hyperscaler, backlog $7.7B, raised FY26 guidance to $6.3B, supply constraints persist but visibility into 2027 strong. Marvell confirms interconnect growth rate +70%, NVIDIA-driven optical demand as third signal. Nvidia $6.5B photonics blitz (Coherent, Lumentum, Marvell, Corning, Ayar Labs); Vera Rubin architecture splits copper/optics at rack scale; Nvidia demanding 20x supply increase, suppliers countering at 12x. Credo acquires DustPhotonics for silicon photonics integration, targeting $600M+ FY27 optical revenue. Scintil Photonics demonstrates DWDM CPO with monolithic III-V-on-Si laser integration (<5ns latency, 3.5 pJ/bit, 8x bandwidth density). NICT achieves 1.7 Pbps over 19-core fiber in standard cladding. Lambda and NVIDIA collaborating on CPO for production AI infrastructure; Nvidia unveils CPO switch with Lambda (3.05 kW savings, 10x resiliency, deployed by five operators). Ayar Labs joins NVIDIA NVLink Fusion ecosystem, validating CPO for AI scale-up networks. TrendForce reports EML/CW-DFB combined capacity to reach 50.7M units/month in 2026, with Broadcom, Lumentum, Sumitomo Electric leading; NVIDIA locking EML, CSPs pivoting to CW-DFB for CPO/OCS. Coherent Q3 FY26: record bookings, backlog into 2028, InP expansion ahead of schedule, OCS market $4B+. Lumentum raising Q4 guidance again confirms accelerating AI optical demand. Coherent's VCSEL arrays at 3.2Tbps per array for NPO/CPO reinforce low-power alternative. Oriole and AMD deployed first commercial pure photonic AI network using Oriole's PRISM photonic switching for ARIA's Scaling Inference Lab, claiming 81% power reduction and sub-1% GPU idle time. Rosenberger supports expanded beam standards for AI data centers, aligning with XOptics MSA. Colt and Ciena set new benchmark with fastest ever quantum-safe transatlantic data transmission using WL6e across 6900km, demonstrating 800GbE PQC for subsea routes. A rebuttal to SemiAnalysis argues CPO is not delayed, countering bearish timelines and reinforcing recent NVIDIA/Ayar Labs momentum. POET publishes article on 400G to 1.6T module evolution, covering LPO/CPO form factors. Intel Foundry keynote reinforces CPO as supply chain emergency, with glass core substrates and wafer-level packaging as critical enablers. Fiberguide reports commercial ramp-up of 1.6T technologies, detailing short-haul IMDD form factors and architecture implications. Nokia reports 49% YoY AI/cloud sales growth, confirming broad-based AI optical demand. Acacia's coherent transceiver sales surge 200%, further tightening supply. A technical survey on ultra-wideband optical infrastructure covers next-gen capacity scaling challenges. JPMorgan doubles Nokia price target to $21, citing accelerating optical orders. NANOG talk on DWDM grid evolution for 1.6T: filterless vs 400GHz COTS filters. Lumentum Sr. Director presents photonics as binding architectural constraint in AI DC networks at NANOG. SemiAnalysis report sparks CPO timeline debate, adding contrarian perspective. Vocus deploys Ciena WL6e on Adelaide-Perth route with C+L bands, reinforcing WL6e long-haul momentum. Coherent breaks ground on Sherman InP expansion with Nvidia, $50M CHIPS funding, quadrupling wafer output. In-depth review of CPO delay controversy questions SemiAnalysis yield model, reinforces NVIDIA official CPO announcements. New standard for fibre optic device testing published (May 2026). SDN-enabled flexible CV-QKD demonstrated for quantum-safe coexistence. Ciena develops 3.2 Tbps networking technology for Nvidia's Feynman platform, validated over 2km using 225GBaud PAM4 tech, pushing DCI capacity beyond WL6e. Japanese government funds ACCESS/IP Infusion to deploy All-Photonics Network technologies in overseas AI data centers. 3M's EBO connector reduces fiber deployment from weeks to days, addressing a practical AI data center buildout bottleneck. Huawei launches 10 AI-optical network products at MWC Shanghai, including 50G PON, fgOTN, and token monetization, signaling a strategic Chinese carrier pivot to AI-optimized optical transport. Morgan Stanley analysis projects $70B AI network market, with conservative CPO timeline (20-30% by 2029-2030) and copper retaining near-term advantage, challenging overly bullish narratives. STMicroelectronics ramps PIC100 300mm SiPh platform; Sicoya demonstrates 1.6T DR8 using die-stacked PIC+EIC, offering a high-volume CMOS-compatible alternative to InP for AI optical engines. Microsoft officially adopts 3M's EBO for Azure AI data centers, validating EBO as a practical solution to fiber cleaning and deployment bottlenecks.