LASER WITH TRANSMISSION MODE AND REFLECTION MODE FEEDBACK CONTROL

摘要

PROBLEM TO BE SOLVED: To provide a stabilized laser including a laser to produce light at a certain frequency and a resonator coupled to the laser such that the light from the laser circulates therethrough.SOLUTION: The laser also includes Pound-Drever-Hall (PDH) feedback electronics configured to adjust the frequency of the light from the laser to reduce phase noise in response to light sensed at a reflection port of the resonator, and transmission port feedback electronics configured to adjust the frequency of the light from the laser toward resonance of the resonator at the transmission port in response to the light sensed at the transmission port of the resonator, where the transmission port feedback electronics adjust the frequency at a rate at least ten times slower than the rate of the PDH feedback electronics.