Optical modulator

Details Optical modulator Optical modulator

2007-11-27

2007-11-27

Leung, Quyen P (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

Reexamination Certificate

active

11315615

ABSTRACT:
An optical modulator which magnifies a modulation index and reduces affection of SBS by suppressing a light source carrier component in an equivalent light source spectral width and performs more long-distance transmission by suppressing one of sideband spectrums generated by a modulation signal to reduce affection of fiber dispersion, having a light branch means that branches input light having a carrier component into two light waves; a SSB modulation means that modulates one branched wave and generates a wave having the carrier component and one sideband spectrum; an intensity adjustment means that adjusts intensity of the carrier component of the other wave; a phase adjustment means that adjusts the phase of the carrier component with respect to at least one of the two waves; and a multiplexing means that multiplexes the two waves passing through the modulation means, and the intensity and phase adjustment means, and emits output light.

REFERENCES:
patent: 7224506 (2007-05-01), Kim et al.
patent: 7239763 (2007-07-01), Kawanishi et al.
patent: 7245787 (2007-07-01), Kawanishi et al.
patent: 2002/0171900 (2002-11-01), Ono et al.
patent: 2001-159750 (2001-06-01), None
Phillips, M.R., et al. (1996) Chromatic Dispersion Effects in CATV Analog Lightwave Systems using Externally Modulated Transmitters, Optical Fiber Communication '96, vol. 2, 1996 Technical Digest Series, Postconference Edition, Optical Society of America, 395-398, 1996, no month available.

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