Optical communications – Multiplex – Wavelength division or frequency division
Reexamination Certificate
2008-01-31
2011-10-18
Phan, Hanh (Department: 2613)
Optical communications
Multiplex
Wavelength division or frequency division
C398S071000, C398S072000, C398S176000, C398S135000, C398S183000, C398S186000, C398S099000, C398S100000, C359S332000, C359S326000, C359S344000, C359S334000, C385S014000, C385S024000, C372S032000, C372S026000, C372S050121
Reexamination Certificate
active
08041219
ABSTRACT:
A method of optical communication includes generating an amplified optical signal from at least a portion of a first optical signal having a first carrier wavelength, λ1. The amplified optical signal is applied to Brillouin media to stimulate generation of a Brillouin effect signal at a wavelength λ2. The Brillouin effect signal is modulated to produce a second optical signal having a second carrier wavelength, λ2. In one embodiment, the first optical signal is a downstream optical signal and the second optical signal is an upstream optical signal of a passive optical network.
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Cancer Mireia Esther Omella
Gomá Josep Joan Prat
Lázaro Villa José Antonio
Davis William D.
Davis & Associates
Phan Hanh
Tellabs Operations Inc.
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