Optical waveguides – With optical coupler – Switch
Reexamination Certificate
2006-03-14
2006-03-14
Bovernick, Rodney (Department: 2874)
Optical waveguides
With optical coupler
Switch
C385S018000, C385S024000, C385S037000
Reexamination Certificate
active
07013058
ABSTRACT:
The present invention is an efficient system and method for cascading optical switches. A plurality of cascaded optical switches form a cascaded optical switch fabric and direct an optical signal beam from one of the plurality of optical switches to another of the plurality of optical switches. In one embodiment of the present invention, a fixed incidence corrective device is included in a cascaded optical switch fabric. The incidence corrective device directs an optical signal beam in a shallow angle so that it strikes the next optical switch at a corrected incidence angle. A corrected incidence angle permits an optical signal beam to be forwarded at a relatively shallow angle to an optical switch located in a relatively close proximity on the optical switch fabric. The present invention also provides for refocusing of spreading optical signal beams and mitigation of signal loss.
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Palmer, Christopher “The Physics of Diffraction Gratings” in Diffraction Gratings Handbook, (Rochester, Richardson Grating Laboratory, 2002). pp 16-19.
Bovernick Rodney
Cypress Semiconductor Corporation
Rojas Omar
Wagner , Murabito & Hao LLP
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