Self-injection locking of an on-chip laser to a milimetre-scale vacuum-gap Fabry–Pérot cavity is demonstrated, with a phase noise of –97 dBc Hz–1 at a 10-kHz offset frequency and a fractional frequency stability of 5 × 10−13 at 10 ms, enabling next-generation high-performance integrated systems.
- Haotian Cheng
- Chao Xiang
- Peter T. Rakich
