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Optical regeneration using a feedforward semiconductor optical amplifier with chirp‐controlled filtering
Author(s) -
Conforti Evandro,
Gallep Cristiano M.,
Bordonalli Aldário C.,
Kang SungMo Steve
Publication year - 2001
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.1338
Subject(s) - chirp , optical amplifier , optical parametric amplifier , optics , pulse (music) , feed forward , amplifier , physics , materials science , optoelectronics , engineering , laser , cmos , control engineering , detector
Abstract Optical pulse regeneration and reshaping using nonlinear optical pulse amplification followed by a chirp‐controlled filtering is simulated. The nonlinear amplification and chirp control are obtained by feedforward current injection in a semiconductor optical amplifier. The nonlinear amplification provides pulse regeneration, and the controlled chirp, in association with an optical frequency discriminator, can be used to optimize the shape of several Gbit/s pulse streams. The simulator model has been confirmed experimentally using eye diagram techniques. In addition, the switching action of an optical semiconductor amplifier with a dynamically arbitrarily injected current can be simulated. © 2001 John Wiley & Sons, Inc. Microwave Opt Technol Lett 30: 438–442, 2001.