Optical waveguides – Polarization without modulation
Reexamination Certificate
2007-06-12
2007-06-12
Font, Frank G. (Department: 2883)
Optical waveguides
Polarization without modulation
C385S027000, C359S199200, C359S341500, C359S341100
Reexamination Certificate
active
11439219
ABSTRACT:
The system of a variable lightwave functional apparatus comprising: an optical amplifier for outputting wavelength multiplexed light containing a plurality of pulses having a first wavelength interval; a polarization branching/coupling device having a first port to a third port, for branching output from said optical amplifier, which is entered from said first port into the polarization branching/coupling device, to both said second port and said third port; a coupler arranged at the second port of said polarization branching/coupling device; and said variable lightwave functional circuit, and arranged between said third port of said polarization branching/coupling device and said coupler; wherein: said wavelength multiplexed light containing said plural pulses having said first wavelength interval is converted into wavelength multiplexed light containing a plurality of pulses having a second wavelength interval in response to lateral pressure applied to said polarization-maintaining optical fiber, and said coupler outputs said converted wavelength multiplexed light.
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Font Frank G.
Heifeld IP Law, PC
Hughes James P.
Japan Science and Technology Agency
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