Optical intensity and phase modulators in an optical transmitter apparatus
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United States of America Patent
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May 7, 1996
Grant Date -
N/A
app pub date -
Apr 2, 1993
filing date -
Apr 7, 1992
priority date (Note) -
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Abstract
An optical transmitter apparatus comprises a light source for optical signal transmission, an intensity modulator, a transmit signal generator and a signal generator. A transmit signal to be transmitted is supplied from the transmit signal generator to the intensity modulator, while a signal generated by the signal generator is supplied to the phase modulator. A light beam emitted from the light source passes through the intensity modulator and the phase modulator to be subsequently sent out as an optical signal for transmission with intensity thereof being modulated upon passing through the intensity modulator while spectrum thereof being spread by phase modulation which the optical signal undergoes upon passing through the phase modulator.
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