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Semiconductor optical amplifier; interband effects; intraband gain dynamics; self-phase modulation.

High bit-rate (>10 Gb/s) signals are composed of very short pulses and propagation of such pulses through a semiconductor optical amplifier (SOA) requires consideration of intraband phenomena. Due to the intraband effects, the propagating pulse sees a fast recovering nonlinear gain which introduces less distortion in the pulse shape and spectrum of the output pulse but introduces a positive chirping at the trailing edge of the pulse.

K Hussain¹ S K Varshney^{1 2} P K Datta³

1. Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
2. Department of Electronics and Electrical Engineering, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India
3. Department of Physics and Meteorology, Indian Institute of Technology Kharagpur, Kharagpur 721 302, India

Published

November 2010