Ring laser having amplitude and phase controlled externally...

Details Ring laser having amplitude and phase controlled externally... Ring laser having amplitude and phase controlled externally...

H - Electricity

01

S

345/10

H01S 3/083 (2006.01) G01C 19/66 (2006.01)

Patent

CA 1260593

ABSTRACT A portion of each of the pair of counter-propagating laser beams in a ring laser cavity are extracted and redirected back into the cavity with servo controlled phase and amplitude. The phase and amplitude of one of the redirected beams is a function of a common first discriminant signal but independently controlled, and the phase and the amplitude of the second redirected beam is responsive to a second mutually exclusive discriminant signal and independently controlled. The redirected beams are such as to minimize the internal back scattering effects within the ring laser cavity.

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