Optical communications – Transmitter – Including compensation
Reexamination Certificate
2005-12-22
2010-10-12
Vanderpuye, Ken N (Department: 2613)
Optical communications
Transmitter
Including compensation
C398S076000, C398S182000, C398S192000, C398S194000
Reexamination Certificate
active
07813653
ABSTRACT:
A method and apparatus is provided for reducing clipping arising in an optical transmitter. The method begins by generating a frequency multiplexed sub-carrier signal onto which information is modulated at a plurality of different sub-carrier frequencies. The method continues by decorrelating in phase at least some pulses that are formed when two or more of the different sub-carrier frequencies are in phase with one another. An optical output produced by a laser is modulated in accordance with the frequency multiplexed sub-carrier signal after at least some of the pulses have been decorrelated in phase.
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Ramachandran Mani
Vieira Amarildo C.
Cullen Larry T.
Dobson Daniel G
General Instrument Corporation
Vanderpuye Ken N
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