Optical: systems and elements – Optical amplifier – Correction of deleterious effects
Reexamination Certificate
2006-04-26
2008-10-07
Hellner, Mark (Department: 3663)
Optical: systems and elements
Optical amplifier
Correction of deleterious effects
C359S349000, C385S011000
Reexamination Certificate
active
07433117
ABSTRACT:
A polarization-diverse optical amplifier includes a polarization-sensitive optically active medium and a polarization splitter. The polarization splitter is configured to receive input light, to direct a first polarization component of the received input light to a first optical path segment, and to direct a second polarization component of the received input light to a separate second optical path segment. The active medium has first and second optical ports. The first optical port is at an end of the first optical path segment. The second port is at an end of the second optical path segment. The active medium outputs amplified light from one of the ports in response to receiving the input light at the other of the ports. In a preferred embodiment, the active medium has an internal optical axis, and the polarizations of the first and second components are oriented relative to that axis so that amplification is enhanced. The two optical path segments may include polarization-maintaining optical waveguides.
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Chowdhury Aref
Doerr Christopher Richard
Raybon Gregory
Hellner Mark
Lucent Technologies - Inc.
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