Multioscillator ring laser gyro using compensated optical wedge

Details Multioscillator ring laser gyro using compensated optical wedge Multioscillator ring laser gyro using compensated optical wedge

1990-02-12

1999-05-25

McGraw, Vincent P.

Optics: measuring and testing

By dispersed light spectroscopy

Utilizing a spectrometer

372 33, 372 94, G01C 1964

Patent

active

059074027

ABSTRACT:
A multioscillator ring laser gyro having a Faraday Cell with an optical wedge in one of its branches. Variations in the MCDL of the optical wedge with temperature are reduced to substantially zero. The internally specularly reflected and backscattered beams from said primary beam have path lengths such that the internally double-bounced reflected and scattered beams of each mode have path lengths wherein the differences between the mode directions are adjusted in a particular manner to reduce cyclic variations with temperature in MCDL substantially to zero.

REFERENCES:
patent: 3854819 (1974-12-01), Andringa

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