Automatic shutdown system and method for optical...

Details Automatic shutdown system and method for optical... Automatic shutdown system and method for optical...

2007-07-20

2008-11-11

Font, Frank G (Department: 2883)

Optical waveguides

With optical coupler

Switch

C385S014000, C385S031000, C385S037000

Reexamination Certificate

active

07450798

ABSTRACT:
An automatic shutdown system for optical multiplexers and demultiplexers includes an optical switch that is disposed in a common optical channel between a transmitter and a receiver of an optical communication system. The optical switch may attenuate or block a signal in the common optical channel during power-off conditions. The optical switch may also provide a low insertion loss and low polarization loss in the common optical channel during power-on conditions.

REFERENCES:
patent: 6785434 (2004-08-01), Castoldi et al.
patent: 6928209 (2005-08-01), Su et al.
patent: 2002/0191886 (2002-12-01), Castoldi et al.
patent: 2004/0161188 (2004-08-01), Su et al.

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