Optical communications – Receiver – Including optical waveguide
Reexamination Certificate
2005-03-15
2005-03-15
Negash, Kinfe-Michael (Department: 2633)
Optical communications
Receiver
Including optical waveguide
C398S092000, C398S096000, C398S116000, C398S118000, C398S130000, C398S139000, C398S141000, C398S144000, C398S157000, C398S160000, C398S212000, C398S088000, C359S341100, C359S341300
Reexamination Certificate
active
06868237
ABSTRACT:
Optical signals are received from a free-space link by directing received light onto a plurality of microlenses and then directing light received through each of the microlenses into a respective single mode optical fiber (SMF). Light beams from the SMFs are combined into a single light beam in one SMF. The single light beam is amplified with a multi-wavelength fiber amplifier and attenuated with a variable optical attenuator. The power gain of the multi-wavelength fiber amplifier and the attenuation of the variable optical attenuator are controlled. The single light beam is directed into a fiber optic communication system that is optically coupled to the variable optical attenuator.
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Clark Gerald R.
Willebrand Heinz
Fitch Even Tabin & Flannery
LightPointe Communications, Inc.
Negash Kinfe-Michael
LandOfFree
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