A GaAlAs - CSP laser diode has been stabilized to a waveguide ring resonator. Frequency control to three parts in 1013 peak-to-peak has been achieved. The simultaneous locking of two such lasers to one resonator has also been demonstrated. The compact laser/resonator module can withstand 60 g RMS vibration over a 2 kHz range and a peak shock level up to at least 3000 g.
J. Danko, J. Danko,
"Integrated Optic Diode Laser Stabilizer", Proc. SPIE 1141, 5th European Conf on Integrated Optics: ECIO '89, (6 December 1989); doi: 10.1117/12.961891; https://doi.org/10.1117/12.961891