Patent ID: 9041992
Filing Date: 2015-05-26
Classification: G01B,G02B,Y10S

Abstract:
1. A method for fiber stabilization of optical path differences, the method comprising: radiating, by a laser, an optical beam; splitting, by a beam splitter, the optical beam into a first optical beam and a second optical beam; reflecting, by a first mirror on a translation stage of an adjustable optical telescope, the first optical beam; splitting, by a first dichroic beam splitter, a first circulated beam into the first optical beam and an adjustable optical telescope beam; reflecting, by a second mirror associated with a reference optical telescope, the second optical beam; splitting, by a second dichroic beam splitter, a second circulated beam into the second optical beam and a reference optical telescope beam; inputting, into an interferometer, the first optical beam and the second optical beam; outputting, from the interferometer, an in-phase signal and a quadrature signal, which together form a sinusoidal signal; filtering, by at least one processor, the sinusoidal signal to form a high frequency signal and a low frequency signal; controlling, with a stage controller, the translation stage by using the low frequency signal; and controlling, with a fiber stretcher controller, a fiber stretcher by using the high frequency signal.