Optical waveguides – With optical coupler – Plural
Reexamination Certificate
2005-12-20
2005-12-20
Palmer, Phan T. H. (Department: 2874)
Optical waveguides
With optical coupler
Plural
C359S341100, C359S341330, C372S071000, C372S703000
Reexamination Certificate
active
06978063
ABSTRACT:
An optical fiber amplifier module is disclosed which comprises a signal path located between a signal input and a signal output. A WDM coupler and an amplifying gain medium are disposed along the signal path. A pump laser is disposed out of the signal path in a manner that allows a pump signal from the pump laser to reflect off the WDM coupler and enter the signal path. An embodiment utilizing a second WDM coupler and a second pump laser is also disclosed.
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Min, Hsieh & Hack LLP
Palmer Phan T. H.
Photon-X, LLC
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