Method and apparatus for monitoring optical switches

Details Method and apparatus for monitoring optical switches Method and apparatus for monitoring optical switches

2005-09-27

2005-09-27

Boutsikaris, Leonidas (Department: 2872)

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

C385S017000, C385S020000, C398S012000, C398S019000

Reexamination Certificate

active

06950215

ABSTRACT:
An optical switching apparatus is provided. Generally, a plurality of optical input switches is provided. A plurality of optical output switches is provided. A plurality of central optical switches connected between the plurality of input switches and plurality of output switches is provided. A plurality of test light sources, where each test light source is connected to an optical input switch, is provided. A first plurality of optical detectors connected to the optical output switches is provided.

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U.S. Appl. No. 09/548,587, to Bowers, filed Apr. 13, 2000.
U.S. Appl. No. 09/805,528, to Welsh et al., filed Mar. 12, 2001.
U.S. Appl. No. to Blumenthal et al., filed May 10, 2001.

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