Optical waveguides – Temporal optical modulation within an optical waveguide
Patent
1991-01-18
1992-04-28
Gonzalez, Frank
Optical waveguides
Temporal optical modulation within an optical waveguide
385 3, G02B 610
Patent
active
051094410
ABSTRACT:
An improved external optical modulator provides reduced noise and distortion. An optical carrier to be modulated is split into a plurality of portions. A first portion of the carrier is modulated with an information signal. A second portion of the carrier is processed to provide an attenuating signal. The modulated carrier portion is combined with the attenuating signal to provide an attenuated optical carrier having improved apparent percentage modulation. In a preferred embodiment, the first carrier portion comprises a substantially greater amount of optical carrier power than the second carrier portion.
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General Instrument Corporation
Gonzalez Frank
Lipsitz Barry R.
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