Optical: systems and elements – Deflection using a moving element – Using a periodically moving element
Patent
1997-06-12
1999-12-07
Epps, Georgia
Optical: systems and elements
Deflection using a moving element
Using a periodically moving element
359181, 359188, 359279, 385 2, 385 3, H04B 1004, G02F 1035
Patent
active
059993006
ABSTRACT:
Bandwidth reduction methods and apparatus that offset the effects of dispersion on a signal transmitted through an optical fiber. The apparatus and methods employ a generator of modulated optical signals in cascade with a modulator. One of the generator and the modulator may be an optical intensity or amplitude modulator and the other a phase (or frequency) modulator. With the application of specific signals, the cascaded generator and modulator produce an optical signal with reduced energy in one half of the transmission bandwidth. One important benefit in the method is the fact that by exploiting the less obvious spectral characteristics of single sideband signals, a simple modulator design is achieved. All of the designs exploit a method of generating analytic signals via hybrid modulation.
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Conradi Jan
Davies Robert J.
Dodds David E.
Burke Margaret
Epps Georgia
Telecommunications Research Laboratories
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