Title :
Polarization-sensitive intermodal all-fiber sensor using spectrally resolved detection
Author :
Bock, Wojtek J. ; Eftimov, Tinko A.
Author_Institution :
Lab. d´´Optoelectron., Quebec Univ., Hull, Que., Canada
fDate :
4/1/2000 12:00:00 AM
Abstract :
The principle of operation of a new scheme for low-noise simultaneous retrieval of X- and Y-polarized intermodal responses of an all-fiber bimodal sensor is reported. The sensor construction features simplicity, allows for a reference channel for signal normalization and permits independent tuning of the initial phases of each of the signals by detecting signals at different wavelengths contained in the spectrum of a quasimonochromatic source
Keywords :
demodulation; fibre optic sensors; light interferometers; optical fibre polarisation; optical signal detection; spectral analysis; strain sensors; temperature sensors; X-polarized intermodal responses; Y-polarized intermodal responses; depolarized bimodal sensor; full spectrum detection; independent tuning; intermodal all-fiber sensor; low-noise simultaneous retrieval; polarization-sensitive; quasimonochromatic source spectrum; reference channel; signal normalization; spectrally resolved detection; strain sensor; temperature sensor; Assembly; Birefringence; Laser feedback; Optical feedback; Optical fiber polarization; Optical fiber sensors; Optical sensors; Phase detection; Signal detection; Signal processing;
Journal_Title :
Instrumentation and Measurement, IEEE Transactions on
