Optical waveguides – Temporal optical modulation within an optical waveguide – Electro-optic
Reexamination Certificate
2008-01-08
2008-01-08
Font, Frank G. (Department: 2883)
Optical waveguides
Temporal optical modulation within an optical waveguide
Electro-optic
C398S182000, C398S183000, C398S184000, C398S185000, C398S187000, C398S188000, C359S237000, C359S245000, C359S246000, C359S254000, C359S279000
Reexamination Certificate
active
10875015
ABSTRACT:
An optical modulator is overdriven to increase its nonlinearity and therefore improve its response as it pertains to differential phase shift keyed (DPSK) transmission and a method of operating the same. In one embodiment, the MZM includes an MZM drive circuit coupled to the electrodes and configured to deliver to the electrode a DPSK drive signal bearing digital data and having a voltage that exceeds a normal drive voltage of the MZM by at least about 20%.
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Gill Douglas M.
Liu Xiang
Anderson Guy G
Font Frank G.
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