Slow light enhancement of nonlinear effects in silicon engineered photonic crystal waveguides

被引：218

作者：

Monat, Christelle ^{[1
]}

Corcoran, Bill ^{[1
]}

Ebnali-Heidari, Majid ^{[1
]}

Grillet, Christian ^{[1
]}

Eggleton, Benjamin J. ^{[1
]}

White, Thomas P. ^{[2
]}

O'Faolain, Liam ^{[2
]}

Krauss, Thomas. F. ^{[2
]}

机构：

[1] Sch Phys, Ctr Ultrahigh bandwidth Devices Opt Syst, CUDOS, Inst Photon & Opt Sci IPOS, Sydney, NSW 2006, Australia

[2] Univ St Andrews, Sch Phys & Astron, St Andrews KY16 9SS, Fife, Scotland

来源：

OPTICS EXPRESS | 2009年 / 17卷 / 04期

基金：

澳大利亚研究理事会;

关键词：

SELF-PHASE MODULATION; GROUP-VELOCITY; PROPAGATION; DISPERSION;

D O I：

10.1364/OE.17.002944

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We report nonlinear measurements on 80 mu m silicon photonic crystal waveguides that are designed to support dispersionless slow light with group velocities between c/20 and c/50. By launching picosecond pulses into the waveguides and comparing their output spectral signatures, we show how self phase modulation induced spectral broadening is enhanced due to slow light. Comparison of the measurements and numerical simulations of the pulse propagation elucidates the contribution of the various effects that determine the output pulse shape and the waveguide transfer function. In particular, both experimental and simulated results highlight the significant role of two photon absorption and free carriers in the silicon waveguides and their reinforcement in the slow light regime.. 2009 Optical Society of America

引用

页码：2944 / 2953

页数：10

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