SENSING SYSTEM BASED ON FOURIER DOMAIN MODE LOCKED TUNABLE LASER

摘要

The sensing system may include a light source part for emitting a laser based on a tunable laser of FDML (Fourier domain mode locked) type, an optical fiber for scattering induction which receives part of the laser emitted from the light source and generates scattering (Rayleigh backscattering) due to the shaking of a minute refractive index, and a signal sensing part for receiving the Rayleigh-backscattered laser from the optical fiber for scattering induction and directly receiving the laser from the light source part to superimpose the two laser beams, and generating an interference signal. So, measurement resolution can be improved.;COPYRIGHT KIPO 2017