Impact of two-photon absorption on self-phase modulation in silicon waveguides

被引：308

作者：

Yin, Lianghong ^{[1
]}

Agrawal, Govind P. ^{[1
]}

机构：

[1] Univ Rochester, Inst Opt, Rochester, NY 14627 USA

来源：

OPTICS LETTERS | 2007年 / 32卷 / 14期

关键词：

D O I：

10.1364/OL.32.002031

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the effects of two-photon absorption on the self-phase modulation (SPM) process in silicon waveguides while including both free-carrier absorption and free-carrier dispersion. An analytical solution is provided in the case in which the density of generated carriers is relatively low; it is useful for estimating spectral bandwidth of pulses at low repetition rates. The free-carrier effects are studied numerically with emphasis on their role on the nonlinear phase shift and spectral broadening. We also consider how the repetition rate of a pulse train affects the SPM process. (c) 2007 Optical Society of America.

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页码：2031 / 2033

页数：3

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