Demonstration of dual diode lasers generating a 111.45 GHz signal with low phase noise, indicating effective self-injection locking.
We self-injection lock two diode lasers to a 4 mm long, micro-fabricated Fabry-Perot cavity. Heterodyning the lasers generates a 111.45 GHz signal with phase noise of -148 dBc/Hz at 1 MHz frequency offset.
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Groman et al. (2025) studied this question.
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