Coherent light generators – Particular beam control device – Having particular beam control circuit component
Reexamination Certificate
2005-11-01
2005-11-01
Harvey, Minsun Oh (Department: 2828)
Coherent light generators
Particular beam control device
Having particular beam control circuit component
C372S029020, C372S029011, C372S050121
Reexamination Certificate
active
06961356
ABSTRACT:
An integrated wavelength combiner/locker is described herein that performs a multiplexing function of a wavelength combiner and a wavelength error measurement function of a wavelength locker. In the preferred embodiment, the integrated wavelength combiner/locker includes a filter (e.g., diffraction grating, glass plate) that receives multiple optical signals and outputs a multiplexed optical signal. The integrated wavelength combiner/locker also includes a partially reflective device (e.g., mirror, coupler/circulator) that directs a portion of the multiplexed optical signal back into the filter that splits the multiplexed optical signal back into individual optical signals. The integrated wavelength combiner/locker further includes one or more ordered pairs of photodetectors each of which receives one of the individual optical signals and is used to detect a wavelength error in that optical signal.
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Alcatel
Sewell W. Lawrence
Smith Jessica W.
Tucker William J.
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