Fiber-Optic Sensors Free from Environmental Disturbances

Abstract

The art of the optical fiber sensors is outlined briefly. The characteristics of the polarizationmaintaining single-mode fibers (PMSF) are described from the view point of the interferometricfiber-optic sensors.The PMSF is useful for devising the optical heterodyne polarimetricfiber-coil deformation sensor immune from temperature perturbations. The performance ofthe sensor is presented.