Silicon photonic chip delivers ultra-stable laser with 58 mHz linewidth, 110 dB noise suppression
jwt0625 · x · 2026-10-21
A Nokia Bell Labs team reports on arXiv an ultra-stable laser built on a silicon photonic chip (fabbed at AMF), combining electro-optic self-injection locking with modulation-free frequency stabilization co-integrated with a vacuum-gap micro-Fabry-Perot cavity (Q = 3.46E9).
- Frequency noise PSD of a commercial DFB diode laser suppressed by over 110 dB at 1 Hz offset, near the cavity's thermal noise limit
- Fundamental linewidth of 58 mHz, fractional frequency instability of 8.68E-13 at 1 s averaging
- Standard silicon photonic process, 10 mm² footprint
The poster highlights the paper's solid methods section and shows turning the figures into interactive components with Claude.
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