Carrier suppression using adiabatic frequency modulation (AFM)

Details Carrier suppression using adiabatic frequency modulation (AFM) Carrier suppression using adiabatic frequency modulation (AFM)

2007-03-06

2007-03-06

Lee, John D. (Department: 2874)

Optical waveguides

With optical coupler

Plural

C398S185000, C398S200000

Reexamination Certificate

active

11037893

ABSTRACT:
A method and system for suppression of the optical carrier of an optically modulated digital signal, the method comprising the steps of: modulating the amplitude of an optical carrier with digital input data to generate an amplitude modulated optical signal; and modulating the frequency of the optical carrier of the resulting optical signal with the same digital input data. A fiber optic system comprising: an optical source adapted to produce an adiabatically chirped amplitude modulated optical signal; an optical fiber adapted to receive the optical signal; and an optical receiver; wherein the optical power of the signal launched into the fiber exceeds the stimulated Brillouin threshold of the transmission fiber for a single frequency, continuous wave signal.

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