OBSERVATIONS OF ULTRAFAST NONLINEAR REFRACTION IN AN INGAASP OPTICAL AMPLIFIER

被引：71
|
作者：
GRANT, RS
SIBBETT, W
机构：
[1] J. F. Allen Physics Research Laboratories, University of St. Andrews, St. Andrews
来源：
APPLIED PHYSICS LETTERS | 1991年 / 58卷 / 11期
关键词：
D O I：
10.1063/1.104389
中图分类号：
O59 [应用物理学];
学科分类号：
摘要：
Spectral broadening due to self-phase modulation has been observed for ultrashort pulses propagating through an InGaAsP optical amplifier. This is not associated with gain saturation or absorption saturation, since it can be observed at the transparency current. At transparency, the broadening and structure of the spectra are symmetrical for pulses of approximately 27 ps duration, implying that the underlying nonlinearity has a relatively fast recovery time. The associated nonlinear index coefficient n2 is estimated to be approximately -2 X 10(-11) cm2 W-1.
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收藏
页码：1119 / 1121
页数：3
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