Automatic Polarization Spectral Response Measurement Systems for Optical Fiber Couplers

Yoshinori NAMIHIRA  Yukio HORIUCHI  Hiroharu WAKABAYASHI  

Publication
IEICE TRANSACTIONS (1976-1990)   Vol.E70   No.11   pp.1080-1082
Publication Date: 1987/11/25
Online ISSN: 
DOI: 
Print ISSN: 0000-0000
Type of Manuscript: Special Section LETTER (Special Issue: Papers from 1987 National Conference on Semicondutor Devices and Materials IEICE)
Category: Optoelectronics
Keyword: 


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Summary: 
By using cooled Ge-PIN photodiode to 77 K (-196) with liquid nitrogen and lock in amplification technique, automatic polarization spectral response measurement systems with measuring dynamic range of about 36 dB has been developed. From the experimental results, it is confirmed that the spectral response of polarization beam splitting ratios of fused-taper fiber couplers are slightly depending on the incident polarization angle.