DocumentCode :
1015232
Title :
Survivable optical fiber architecture employing ultra-wavelength-insensitive switch and coupler
Author :
Katsuyama, Yutaka ; Takato, Norio
Author_Institution :
R&D Center, NTT Telecommun. Field Syst., Ibaraki, Japan
Volume :
11
Issue :
12
fYear :
1993
fDate :
12/1/1993 12:00:00 AM
Firstpage :
2177
Lastpage :
2181
Abstract :
A new survivable fiber network architecture, active/passive routing architecture, is proposed and the main aspects of its performance are described. This architecture consists of an ultra-wavelength-insensitive switch as an active element and a wavelength-insensitive coupler as a passive element. The ultra-wavelength-insensitive switch is wavelength-independent from 1.25 to 1.6 μm. The survivable network was constructed by using the above routine elements and field-installed cables, and a switching experiment was carried out for WDM signals in the 1.3- and 1.55-μm bands. The bit-error-rate measurement proved that this fiber architecture can maintain high survivability for upstream and downstream signals by permitting a loss penalty of 0.5 dB. When a fiber fails, the signal is switched automatically to another fiber link, and signal synchronization was restored within 1 s
Keywords :
optical couplers; optical fibres; optical links; optical switches; telecommunication network routing; wavelength division multiplexing; 0.5 dB; 1.25 to 1.6 micron; 1.3 micron; 1.55 micron; WDM signals; active/passive routing architecture; bit error rate measurement; downstream signals; fiber failure; fiber link; field-installed cables; loss penalty; passive element; signal synchronization; survivable optical fiber architecture; switching experiment; ultra-wavelength-insensitive switch; upstream signals; wavelength-insensitive coupler; Optical coupling; Optical fiber cables; Optical fiber couplers; Optical fiber devices; Optical fiber networks; Optical fiber polarization; Optical fibers; Optical switches; Routing; Wavelength division multiplexing;
fLanguage :
English
Journal_Title :
Lightwave Technology, Journal of
Publisher :
ieee
ISSN :
0733-8724
Type :
jour
DOI :
10.1109/50.257986
Filename :
257986
Link To Document :
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