Patent ID: 6201923
Filing Date: 2001-03-13
Classification: G01C,G02B

Abstract:
An optical fiber gyroscope comprising a fiber coil composed of a lengthy optical fiber wound therearound in a predetermined number of turns, a coupler for optically coupling an optical fiber led from a light source and an optical fiber led to a photodetector, and an optical waveguide element arranged between said fiber coil and said coupler and integrated with functions of at least a phase modulator and a polarizer, said optical fiber gyroscope further comprising:a fiber coil reel around which said lengthy optical fiber for constructing said fiber coil is wound in said predetermined number of turns;a coupler reel around which said optical fibers led in both directions from said coupler are wound in a predetermined number of turns; anda housing member which is formed with a plurality of compartments for accommodating at least said both reels, said light source, and said optical waveguide element.