Optical communications – Optical transceiver – Including optical fiber or waveguide
Reexamination Certificate
2005-08-23
2005-08-23
Negash, Kinfe-Michael (Department: 2633)
Optical communications
Optical transceiver
Including optical fiber or waveguide
C398S116000, C398S118000, C398S141000, C398S130000, C398S157000, C398S160000, C398S214000, C398S092000, C398S103000, C398S096000, C359S341100
Reexamination Certificate
active
06934477
ABSTRACT:
Erbium doped fiber amplifiers (ERDAs) optically couple optical signals between free-space and fiber optic links of a terrestrial optical communication network. The optical gain of transmitting and receiving ERDAs is controlled to achieve good optical signal communication. Control occurs in response to signals received at the transmitting and receiving ends of the links. Control, status and management information may be communicated optically between link head stations. The physical position of transceivers at opposite ends of the link optical signal paths is also controlled.
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Negash Kinfe-Michael
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