DocumentCode
976354
Title
Optical coupler for laser redundancy system
Author
Kishimoto, R.
Author_Institution
NTT Yokosuka Electrical Communication Laboratory, Yokosuka, Japan
Volume
18
Issue
3
fYear
1982
Firstpage
140
Lastpage
141
Abstract
Experimental results are described for a new optical coupler, which consists of two laser diodes, two GRIN spherical rod lenses, a polarised filter and a single-mode fibre, and employs laser diode polarisation characteristics for an optical submarine transmission laser redundancy system. This optical coupler has two channels at a 1.3 ¿m wavelength. Optical coupler loss, which includes coupling loss, polarisation loss and assembly loss, is 4.9 dB for laser diode 1, and 5.2 dB for laser diode 2.
Keywords
optical communication equipment; optical couplers; semiconductor junction lasers; GRIN spherical rod lenses; assembly loss; coupling loss; laser diodes; optical coupler; optical submarine transmission laser redundancy system; polarisation characteristics; polarisation loss; polarised filter; single-mode fibre;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19820093
Filename
4246269
Link To Document