Self-healing optical network

Details Self-healing optical network Self-healing optical network

1998-01-14

1999-02-09

Negash, Kinfe-Michael

Optical: systems and elements

Deflection using a moving element

Using a periodically moving element

359110, 359128, 359139, H04J 1400, H04B 1020

Patent

active

058702121

ABSTRACT:
A self-healing optical network carrying traffic between first and second optical linear terminals. The self-healing optical network including first, second, and third optical switching units, first, second, and third spare optical channels, and a working optical channel. The first, second, and third optical switching units are coupled in a ring configuration using said first, second, and third spare optical channels. The first and second optical switching units are coupled by the first spare optical channel and by the working optical channel. The first and second optical switching units each direct the traffic between the first and second optical linear terminals along the working optical channel or along the second and third spare optical channels in the event the working optical channel is not available.

REFERENCES:
Yamashita et al., "Flexable Synchronous Broad-Band Subscriber Loop System : Optical Shuttle Bus", Journal of Lightwave Technology. vol. 7, No. 11, pp. 1788-1797, Nov. 1989.
Uehara et al., "Highly Reliable and Economical WDM Ring with Optical Self-Healing and 1:N Wavelength Protection", ECOC 97, 22-25 Sep. 1997, Conference Publication No. 448.
Takeshita et al., "A Demonstration of an Optical Cross-Connect System for a Self-Healing Optical Network", ECOC 97, 22-25 Sep. 1997, Conference Publication No. 448.

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