Interference type optical fiber gyroscope based on MZ interference principle

A fiber optic gyroscope, interferometric technology, applied in instruments, optical devices, measurement devices, etc., can solve the problems of low signal-to-noise ratio, low optical power utilization, interference, etc., and achieve high sensitivity, high cost performance, and stable performance. Effect
CN1307404CInactive Publication Date: 2007-03-28UNIV OF ELECTRONICS SCI & TECH OF CHINA
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Patents(China)
Current Assignee / Owner
UNIV OF ELECTRONICS SCI & TECH OF CHINA
Publication Date
2007-03-28
Estimated Expiration
Not applicable · inactive patent

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Abstract

The invention relates to an interference type optical fiber gyro based on principle of MZ interference, wherein the gyroscopic instrument comprises an illuminating source, a beam divider, an optical supervisory instrument, and an optical fiber sensor coil composed of two optical fiber arms of MZ interference, wherein the light from the light source is connected to the starting terminal and ending terminal of the two optical fiber arms on the optical fiber coils after the beam divider. The forward conduction optical path is separate from the intervened optical path, thus no interference is resulted.
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Description

technical field

[0001] The invention relates to a fiber optic gyroscope, in particular to an interferometric fiber optic gyroscope based on the principle of Mach-Zehnder interference. Background technique

[0002] Fiber optic gyroscope is a new type of all-solid-state inertial instrument without mechanical rotor. It has broad application prospects in aerospace, aviation, navigation, vehicles, military and many civil fields, and has received extensive attention at home and abroad. The development of fiber optic gyroscopes has a history of more than 20 years. There are many related articles and works published, and many patents. After years of research, several fiber optic gyroscopes have been industrialized so far, and they have been used in military and civilian fields. get applied. From a technical point of view, the current fiber optic gyroscopes mainly include interferometric fiber optic gyroscopes using Sagnac interference effect and resonant fiber optic gyroscopes. Sag...

Claims

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