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Conferences > OAA > 1990 > WC > WC3

Wide Band Phase Modulation of a Semiconductor Optical Amplifier

G. R. Joyce, R. Olshansky, and P. Hill

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Abstract

Previous studies have reported using semiconductor optical amplifiers as phase modulators 3 dB bandwidths of up to 500 MHz1, including baseband DPSK transmission of 140 Mb/s2 and 565 Mb/s3. In this paper we show that, when operated at high bias, an optical amplifier has a modulation bandwidth of over 3 GHz, with a phase response of 0.02 rad/mA, equivalent to a Vπ of 8 V. Use of the amplifier as a high frequency modulator is demonstrated by transmitting a 100 Mb/s DPSK signal on a 3.6 GHz subcarrier.

© 1990 Optical Society of America

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