Open AccessSignal impairment analysis of optical controlled apparatus caused by semiconductor optical amplifier
Author(s) -
Yongjun Wang,
Chongqing Wu,
Zhi Wang,
Yaping Wang,
Xiangjun Xin,
()北京交通大学光信息科学与技术研究所，发光与光信息技术教育部重点实验室，北京 ; ()北京邮电大学电子工程学院，信息光子学与光通信教育部重点实验室，北京
Publication year - 2010
Publication title -
acta physica sinica
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.199
H-Index - 47
ISSN - 1000-3290
DOI - 10.7498/aps.59.4042
Subject(s) - optical amplifier , materials science , signal (programming language) , distortion (music) , optoelectronics , amplifier , optical transistor , optical power , semiconductor , optics , physics , computer science , laser , voltage , transistor , programming language , cmos , quantum mechanics
This paper analyzes the signals impairment in the semiconductor optical amplifier (SOA) based optical buffer for optical packets switching networks, including the shape distortion of single pulse and the pattern dependent distortion of the continuous bit stream due to the SOAs nonlinearity and the limitation of its carrier lifetime, the deterioration of signal-to-noise ratio caused by the accumulation of amplified spontaneous emmision noise of the SOA, and the power leakage. The theoretical analysis and experimental results indicate that the buffered circle is restricted to 20—30, as determined by the signals impairment when a negative control optical pulse with high power is injected into SOA.
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