Patent ID: 7327471
Filing Date: 2008-02-05
Classification: H01S

Abstract:
1. Laser frequency stabilizing apparatus for stabilizing the frequency of a laser based upon an initial beam generated by the laser, the apparatus comprising: a frequency changing actuator for changing the frequency of the laser in response to a laser frequency control signal; a beam splitter system for producing a first split beam and a second split beam from the initial laser beam; a first servo system incorporating— a control system for receiving the first error signal, the second error signal, and the enable signal and for outputting a laser frequency control signal based upon the received signals; wherein the frequency changing actuator is responsive to the laser frequency control signal and operates to alter the frequency of the laser in a direction such that at least one of either the first error signal or the second error signal indicates that the detuning is decreasing, and wherein at least one of the first servo system and the second servo system includes functionality to utilize one of a PDH locking technique, a polarization locking technique, and a tilt locking technique to produce at least one of the first error signal and the second error signal.