Optical transmission circuit

Details Optical transmission circuit Optical transmission circuit

2006-01-03

2006-01-03

Lee, John D. (Department: 2874)

Optical waveguides

Temporal optical modulation within an optical waveguide

Electro-optic

C385S001000

Reexamination Certificate

active

06983085

ABSTRACT:
The optical transmission circuit of the present invention has an optical modulator12which modulates continuous light at wavelength λo with a signal at repetition frequency fo Hz and outputs alternating phase-inverted pulse light; a bias voltage applying unit14which applies a bias voltage to the optical modulator12; an optical power spectrum measuring unit17having frequency resolution of less than fo Hz which measures the optical power spectrum of light output from the optical modulator12; and a control circuit which controls the bias voltage via the bias voltage applying unit14based on measurements of the power spectrum of the output light of the optical modulator12, so as to minimize the power intensity of the carrier spectrum component of wavelength λo, or to maximize the power intensity of the spectrum component in both side bands.

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