US 12,449,257 B2
Control of laser frequency in an optical gyroscope with a ring resonator
Andrew Jordan, Laguna Beach, CA (US); Jaime Cardenas, Rochester, NY (US); and Meiting Song, Rochester, NY (US)
Assigned to DRS Network & Imaging Systems, LLC, Melbourne, FL (US); and University of Rochester, Rochester, NY (US)
Filed by DRS Network & Imaging Systems, LLC, Melbourne, FL (US); and University of Rochester, Rochester, NY (US)
Filed on Dec. 9, 2022, as Appl. No. 18/078,675.
Claims priority of provisional application 63/288,423, filed on Dec. 10, 2021.
Prior Publication US 2023/0184554 A1, Jun. 15, 2023
Int. Cl. G01C 19/66 (2006.01); G01C 19/72 (2006.01); G02B 6/293 (2006.01)
CPC G01C 19/661 (2013.01) [G01C 19/727 (2013.01); G02B 6/29338 (2013.01)] 18 Claims
OG exemplary drawing
 
1. A method of locking a laser to a ring resonator of a weak value device, the method comprising:
generating input light at the laser;
sending the input light to a bright port of the weak value device;
modifying the input light at the weak value device using the ring resonator and weak value amplification (WVA) techniques to form return light;
sending the return light from the bright port to a stabilizing structure;
generating a tuning signal at the stabilizing structure based on the return light; and
controlling one or both of the laser or the ring resonator using the tuning signal to lock a frequency of the laser to a resonance frequency of the ring resonator.