Polarization-insensitive four-wave mixing in a semiconductor optical amplifier
作者:
A. Mecozzi,
G. Contestabile,
L. Graziani,
F. Martelli,
A. D’Ottavi,
P. Spano,
R. Dall’Ara,
J. Eckner,
期刊:
Applied Physics Letters
(AIP Available online 1998)
卷期:
Volume 72,
issue 21
页码: 2651-2653
ISSN:0003-6951
年代: 1998
DOI:10.1063/1.121087
出版商: AIP
数据来源: AIP
摘要:
We propose and demonstrate a method to obtain polarization-insensitive four-wave mixing in a semiconductor optical amplifier. The method makes use of two pumps with orthogonal polarization placed at the two sides of the signal spectrum. Unlike a previously proposed scheme, a large bandwidth of the signal does not set a lower limit to the degree of polarization insensitivity obtained. Using a commercially available pig-tailed semiconductor optical amplifier, we have obtained less than 0.4 dB of intensity variation of the conjugate field for arbitrary changes of the signal polarization. ©1998 American Institute of Physics.
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