TY - GEN
T1 - A wideband wavelength discriminator using 3×3 directional coupler
AU - Song, M.
N1 - Publisher Copyright:
© 1999 IEEE.
PY - 1999
Y1 - 1999
N2 - Fiber interferometers have been widely used as wavelength discriminators of fiber Bragg grating sensors. The positive and negative slopes of the interferometer's transfer function can be used as an effective sensors wavelength discriminator, which convert Bragg wavelength shift to variations of the transmitted optical intensity. However due to its periodicity, the dynamic range of measurement is limited by the quasi-linear range in the slopes. The fluctuating phase bias, which is temperature dependent, is also a limiting factor of interferometric measurement because it leads to the variation in the system sensitivity. To solve the problems while maintaining high-resolution, a newly developed quadrature signal processing is applied to the photodetector signals.
AB - Fiber interferometers have been widely used as wavelength discriminators of fiber Bragg grating sensors. The positive and negative slopes of the interferometer's transfer function can be used as an effective sensors wavelength discriminator, which convert Bragg wavelength shift to variations of the transmitted optical intensity. However due to its periodicity, the dynamic range of measurement is limited by the quasi-linear range in the slopes. The fluctuating phase bias, which is temperature dependent, is also a limiting factor of interferometric measurement because it leads to the variation in the system sensitivity. To solve the problems while maintaining high-resolution, a newly developed quadrature signal processing is applied to the photodetector signals.
UR - https://www.scopus.com/pages/publications/0033355368
U2 - 10.1109/CLEOPR.1999.811545
DO - 10.1109/CLEOPR.1999.811545
M3 - Conference paper
AN - SCOPUS:0033355368
T3 - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
SP - 511
EP - 512
BT - CLEO/Pacific Rim 1999 - Pacific Rim Conference on Lasers and Electro-Optics
PB - Institute of Electrical and Electronics Engineers Inc.
T2 - 1999 Pacific Rim Conference on Lasers and Electro-Optics, CLEO/Pacific Rim 1999
Y2 - 30 August 1999 through 3 September 1999
ER -