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Nonlinear Propagation and Wave Mixing Characteristics of Pulses in Semiconductor Optical Amplifiers by Narottam Kumar Das; Nemai Chandra Karmakar is a Engineering article available to read on EtoBox.

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## Abstract Nonlinear propagation and wave mixing characteristics of pulses in semiconductor optical amplifiers (SOAs) are analyzed using the finite‐difference beam propagation method (FD‐BPM). From the analyzed output waveform it is found that the peak positions of pulses are shifted to the leading edge. The output spectra are red‐shifted and the dips are found at the higher frequency side in the frequency spectra. Two pulses propagate in SOAs and four‐wave mixing (FWM) characteristics are obtained. Next, all‐optical demultiplexing (DEMUX) characteristics of pulses in SOAs based on FWM are analyzed. From this analysis, it is clear that the SOAs with wider gain bandwidth are required for faster DEMUX operation. The DEMUX characteristics from the time‐multiplexed signals by the repetitive pump pulses are also analyzed. The FWM signal intensity decreases with the strong pump pulses. However, there is no pattern effect due to gain saturation of pulses, because the pump pulses are injected continuously. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 1223–1227, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23350

Who reads Nonlinear Propagation and Wave Mixing Characteristics of Pulses in Semiconductor Optical Amplifiers?

Author

Narottam Kumar Das; Nemai Chandra Karmakar

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); John Wiley & Sons Inc.; Wiley (ISSN 0895-2477)

Published

2008

Language

EN

Field

Engineering (Physical Sciences)