Methods and apparatus for control of optical switching...

Details Methods and apparatus for control of optical switching... Methods and apparatus for control of optical switching...

2006-05-23

2006-05-23

Font, Frank G. (Department: 2883)

Optical waveguides

With optical coupler

Switch

Reexamination Certificate

active

07050668

ABSTRACT:
Techniques and systems for control of optical switching arrays are described. A switch array controller according to an aspect of the present invention operates so as to achieve reduced power consumption and maintain crosstalk within acceptable limits. Various rules are applied in order to insure that the desired criteria are met. In order to reduce transient effects, switching from one output to another is accomplished in a sequence chosen to maximize the number of transitions occurring in those portions of the array not carrying a signal, and to minimize the number of transitions that occur in portions of the array carrying the signal. Transitions are made in the portion of the array to which the signal will be directed, then a switch is transitioned between the old and new signal paths, and finally further transitions are made in the portion of the array within which the signal was previously directed.

REFERENCES:
patent: 5623541 (1997-04-01), Boyle et al.
patent: 5844540 (1998-12-01), Terasaki
patent: 5896474 (1999-04-01), Van Deventer et al.
patent: 6324510 (2001-11-01), Waibel et al.
patent: 2002/0031124 (2002-03-01), Li
patent: 2002/0051447 (2002-05-01), Li
patent: 2005/0084264 (2005-04-01), Kumaran et al.

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