Nevigation-class cyclic interference type integrated optical gyroscope

An integrated optics and interferometric technology, applied in the direction of steering sensing equipment, etc., can solve the problems of high cost, shorten the length of the optical fiber sensitive coil, etc., achieve the effect of reducing sensitivity, reducing spontaneous radiation noise, and improving signal-to-noise ratio
CN1338613AInactive Publication Date: 2002-03-06็ซ ็‡•็”ณ
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Patent Information

Authority / Receiving Office
CN ยท China
Current Assignee / Owner
็ซ ็‡•็”ณ
Publication Date
2002-03-06
Estimated Expiration
Not applicable ยท inactive patent

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Abstract

A nevigation-class cyclic interference type integrated optical gyroscope is composed of optical transceiver module, Y-waveguide electro-optical phase modulation module, closed-loop control and signalreader module, and sensing loop module consisting of coupler, optical semiconductor amplifier and Sainaike-effect sensing loop. Said phasew modulation module is bidirectionally connected with said optical transceiver module and sensing loop module. The D / A converter is said optical transceiver module is connected to said closed-loop control and signal reader module. Its advantages include short SSR length, high compatibility, small size, low cost and high reliability.
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Description

technical field

[0001] The invention belongs to the technical field of sensors and artificial intelligence, in particular to the design of an interference type integrated optical gyroscope. Background technique

[0002] Optical gyroscopes, including laser gyroscopes (Ring Laser Gyroscope, RLG) and fiber optic gyroscopes (Fiber Optical Gyroscope, FOG), are suitable for strapdown inertial navigation systems. Compared with traditional electromechanical gyroscopes, they have advantages in miniaturization, low cost and high reliability, so they develop rapidly and gradually replace electromechanical gyroscopes.

[0003] The development direction of RLG and FOG is to reduce cost and realize miniaturization. In 1996, the present inventor published the paper "Key Technology of Miniaturized Resonant Optical Angular Velocity Sensor", and proposed a scheme for developing a resonant integrated optical gyroscope (Integrated Optical Gyroscope, IOG). In this scheme, the optical waveguide...

Claims

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