# Coherent

Company ID: coherent · public · HQ US

Coherent (formerly II-VI) makes optical transceivers at 400G/800G moving toward 1.6T, EML and DFB lasers, and silicon-photonics components used in AI data-center interconnects, plus SiC substrates for power devices. From fiscal 2026 it reports a dedicated "Datacenter and Communications" segment.

Listings: COHR (US, primary)

Last price: 295.39 USD (2026-08-28T02:17:39Z, nightly snapshot)

## Parts made

| Part | Layer | Role | Confidence |
|---|---|---|---|
| Optical transceivers (3.04) | 3 | manufacturer | inferred |
| Lasers (3.06) | 3 | manufacturer | inferred |
| DCI / coherent optics (3.12) | 3 | manufacturer | inferred |
| 800 V DC architecture & solid-state transformers (7.16) | 7 | manufacturer | inferred |
| External laser sources (3.08a) | 3 | manufacturer | inferred |
| GaN and SiC (4.08a) | 4 | manufacturer | inferred |