NOISE ELIMINATING SYSTEM OF OPTICAL FIBER GYRO

摘要

PURPOSE:To measure exactly an angular velocity, by providing an optical fiber loop formed by winding a single mode fiber, a laser, a half mirror for dividing the laser light into two luminous fluxes, etc., and fetching only signal light. CONSTITUTION:A noise eliminating device of an optical fiber gyro is provided with an optical fiber loop 8 formed by winding a sigle mode fiber 2, a half mirror 6 for dividing laser light 5 into two luminous fluxes, etc. In this state, the light divided by the half mirror 6 is reflected by mirrors 7, 7 and is made incident to a lens 1, by which only signal light is fetched, and an anglar velocity can be measured exactly.