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Effect of Two-Photon Absorption Nonlinearity on Short Pulse Propagation in Semiconductor Optical Amplifiers at Transparency

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Abstract

The amplification of ultrashort optical pulses in Semiconductor Optical Amplifiers (SOAs) has been the subject of considerable research interest, because the ultrafast carrier dynamics in SOAs is important for tailoring devices with applications in optical frequency conversion [1], high speed optical signal manipulation in optoelectronic integrated circuits and for understanding the high-speed modulation response of semiconductor lasers. With a view to such applications, numerical investigations have been undertaken of the picosecond pulse saturation behaviour of SOAs [2]. The effect of nonlinearity on the chirp characteristics of piosecond pulse amplification have also been reported [3].

© 1998 Optical Society of America

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