Lumentum Holdings (LITE)

Optical components / photonics (Lumentum) — lasers + datacom transceivers for AI optics

AI exposure 80% — derived from reported segment revenue, not asserted.

Where it sits

Connectivity → Optical Components & Photonics · figures rebased to FQ4 FY2026, reported 2026-08-11

InP EML / CW / pump laser chips for AI datacom + telecom transport components leads 2 businesses in this sub-tier that together are 94% of revenue, so Optical Components & Photonics is effectively the whole company rather than one leg of it. The rest is tagged separately: Lasers, Directed Energy & Photonics at 6%.

Also tagged: emerging in Frontier & Emerging Bets → Lasers, Directed Energy & Photonics.

Reported segments

• Components — 64.5% of revenue
• Systems — 35.5% of revenue

Lumentum ($3.014B FY2026, +83.2%; Q4 FY2026 $1,006.3M, +109.3% — the first $1B quarter). From Q4 FY2026 the company reports by PRODUCT TYPE only: Components 64.5% ($649.4M — InP EML/CW/pump laser chips plus the residual industrial-laser and 3D-sensing lines) + Systems 35.5% ($356.9M — Cloud Light 800G/1.6T transceivers and Optical Circuit Switches). The prior Cloud & Networking / Industrial Tech split was discontinued; Cloud & Networking was already ~88% of revenue when it was last reported. Primary B3 Optical Components & Photonics; candidate B7 Lasers tag on the ~6% industrial/3D-sensing…

How the 80% is built

• Components — 64.5% of revenue × 72% AI-driven (estimate). 200G EML, CW and pump laser chips for AI datacom dominate the line; the non-AI residual is telecom transport componentry plus the shrinking industrial-laser and 3D-sensing business, which is roughly 6% of total revenue
• Systems — 35.5% of revenue × 95% AI-driven (estimate). Cloud Light 800G/1.6T transceivers and Optical Circuit Switches sold into hyperscaler AI data centres; OCS alone is guided above $100M in Q1 FY2027

Investment read

Moat. A process lead in indium-phosphide EMLs — the only supply of 200G-per-lane laser chips shipping at volume, with those parts now more than 25% of EML revenue and targeted above 50% by mid-2027 — gated by 12-18 month customer qualification cycles. NVIDIA's $2B strategic investment came with a multi-billion purchase commitment and capacity-access rights, and an AXT long-term agreement secures additional InP substrate. A real lead, but Coherent and the silicon-photonics roadmap contest it directly.

Bottleneck / pricing power. Scarcity rent that is still widening rather than peaking: non-GAAP gross margin crossed 50% for the first time at 50.4% in Q4 FY2026, non-GAAP operating margin reached 36.6% and Q1 FY2027 is guided to 39.5-40.5%. Full-year non-GAAP operating margin went from 9.7% to 29.8%. The pricing power is real while supply is short; it has not yet been tested through a full cycle.

Role in the AI stack. The photonics/transceiver layer for AI interconnects.

Connected companies

• NVIDIA (NVDA) — LITE supplies: 800G/1.6T EML lasers
• Fabrinet (FN) — LITE is supplied by: photonics contract mfg
• Nokia (NOK) — LITE supplies: lasers / EML chips / optical components into Nokia optical networking (incl. acquired Infinera line)
• Coherent (COHR) — LITE competes with: Datacom optical modules + lasers — the two US optical-component majors for AI
• MACOM Technology (MTSI) — LITE is supplied by: laser drivers / TIAs / lasers — component supplier into optical-module maker
• Monolithic Power Systems (MPWR) — LITE is supplied by: power for optical modules (Lumentum)
• Arista Networks (ANET) — LITE supplies: optical transceivers/components for Arista switches (Arista partners coherent-optics vendors)
• Ciena (CIEN) — LITE supplies: optical components for Ciena systems
• IPG Photonics (IPGP) — LITE competes with: industrial lasers / photonics — Lumentum vs IPG Photonics
• Microsoft (MSFT) — LITE supplies: datacom transceivers and laser components (EML/CW) reaching Azure AI networks directly and via transceiver OEMs
• Alphabet (GOOGL) — LITE supplies: 800G datacom transceivers (Cloud Light) and laser components for Google AI networks
• Meta Platforms (META) — LITE supplies: lasers/EML chips in Meta-bound 800G optics; Cloud Light unit sells transceivers direct to hyperscalers
• Amazon (AMZN) — LITE supplies: datacom lasers and transceiver components reaching AMZN AI data centers, largely via module makers
• Oracle (ORCL) — LITE supplies: optical components for ORCL AI data centers

Others in Optical Components & Photonics

• Coherent (COHR)
• Corning (GLW)
• MACOM Technology (MTSI)
• Credo Technology (CRDO)

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