DocumentCode
1342447
Title
Suppression of oscillation in attenuation with wavelength in SC-type fixed optical attenuators
Author
Takeuchi, Y. ; Mitachi, S. ; Nagase, R.
Author_Institution
NTT Opto-Electron. Labs., Ibaraki, Japan
Volume
33
Issue
14
fYear
1997
fDate
7/3/1997 12:00:00 AM
Firstpage
1245
Lastpage
1246
Abstract
The oscillation in attenuation of >3 dB with wavelength in SC-type fixed optical attenuators with attenuation values >15 dB has been effectively suppressed by reducing the coupling between the cladding and core modes in optical absorption fibres. This has been achieved by increasing the refractive index in the outer part of the cladding; polarisation dependent loss (PDL) has also been drastically reduced
Keywords
light absorption; optical communication equipment; optical fibre losses; refractive index; waveguide attenuators; SC-type; attenuation oscillation suppression; cladding modes; core modes; fixed optical attenuators; optical absorption fibres; polarisation dependent loss; refractive index; wavelength;
fLanguage
English
Journal_Title
Electronics Letters
Publisher
iet
ISSN
0013-5194
Type
jour
DOI
10.1049/el:19970821
Filename
603598
Link To Document