Title :
Spectral response measurements on polarisation splitting ratio of fused-taper single-mode fibre couplers
Author :
Namihira, Yoshinori ; Horiuchi, Yoichiro ; Wakabayashi, H.
Author_Institution :
KDD Meguro Research & Development Laboratories, Tokyo, Japan
Abstract :
Using a Ge PIN photodiode cooled to 77 K (¿196°C) with liquid nitrogen and the lock-in amplification technique, an automatic polarisation spectral response measurement system with a measuring dynamic range of about 36 dB has been developed. It has been confirmed experimentally that the spectral response of polarisation beam-splitting ratios of fused-taper fibre couplers depend on the incident polarisation angle
Keywords :
light polarisation; optical communication equipment; optical couplers; optical fibres; 77 K; Ge; Ge PIN photodiode; automatic polarisation spectral response measurement; coherent optical communication; fused-taper single-mode fibre couplers; incident polarisation angle; liquid N2; lock-in amplification technique; measuring dynamic range; polarisation splitting ratio; spectral response;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19870838
