Abstract
Semiconductor Optical Amplifiers (SOAs) assume a key role in new generation of ultra-fast transmission systems for their intrinsic characteristics such as optical gain, operation with relatively low input power, small size, capability of large-scale integration and short response time. These devices result suitable for wavelength conversion, all-optical modulation, demultiplexing, rigeneration, and optical sampling. The phenomena involved in SOA-based all-optical processing can be mainly identified in cross-gain modulation (XGM), cross phase modulation (XPM), and four-wave mixing (FWM). With the increase in bit-rates of optical fiber communications, all-op tical devices should operate at higher speeds. An analytical approach is indispensable in order to well-estimate and understand the SOA behavior. Up to now, different models have been used for analysis of short optical pulses propagation but they generally result complex or they do not take into account for all nonlinear effects.
© 2002 Optical Society of America
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