DFB laser heterogeneously coupled to LNOI: 170 mW output, 45 mA threshold
jwt0625 · x · 2026-10-18
The author shares measured LI curves of a DFB laser before and after heterogeneous coupling to a thin-film lithium niobate on insulator (LNOI) photonic chip.
Key figures:
- Laser threshold around 40–45 mA
- Peak optical output of 170 mW at 700 mA drive current
- Insertion loss stays flat at roughly 6.5–7.5 dB across the full current range, with smooth, clean curves
The accompanying diagram shows the device structure: a 4mm lithium niobate waveguide with RF input and optical output. A solid experimental validation of laser-to-LNOI integration quality, relevant to photonic computing and optical interconnect hardware.
Related event: DFB Laser Coupled to Thin-Film Lithium Niobate Chip Delivers up to 170mW(2 posts)→
More from Infra
- Auction-based LLM routing paper finds fixed token pricing wastes 10%-71% in costs — _onionesque · 2026-10-18
- Running Ling 3.1 Flash (560B MoE, 25B Active) Across 4 DGX Sparks via llama.cpp RPC — BerryBlush_Rogers691 · 2026-10-18
- SGLang Summit sponsors jump from 11 to 36 in one week — ying11231 · 2026-10-18
- Oracle CDS hits record 300bps, called first AI trade domino after Barclays sell downgrade — arthurcolle · 2026-10-18
- Agent Coding Workflow Would Cost ~$40k/Month on API Pricing, Dev Reveals — ChrisRackauckas · 2026-10-18
- PS5LM: llama.cpp port turns a jailbroken PS5 into a home LLM server (500+ GitHub stars) — wateriscoding · 2026-10-18