Nonlinear response of silicon photonic crystal microresonators excited via an integrated waveguide and fiber taper

被引:348
作者
Barclay, PE [1 ]
Srinivasan, K [1 ]
Painter, O [1 ]
机构
[1] CALTECH, Dept Appl Phys, Pasadena, CA 91125 USA
关键词
D O I
10.1364/OPEX.13.000801
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
A technique is demonstrated which efficiently transfers light between a tapered standard single-mode optical fiber and a high-Q, ultra-small mode volume, silicon photonic crystal resonant cavity. Cavity mode quality factors of 4.7 x 10(4) are measured, and a total fiber-to-cavity coupling efficiency of 44% is demonstrated. Using this efficient cavity input and output channel, the steady-state nonlinear absorption and dispersion of the photonic crystal cavity is studied. Optical bistability is observed for fiber input powers as low as 250 muW, corresponding to a dropped power of 100 muW and 3 fJ of stored cavity energy. A high-density effective free-carrier lifetime for these silicon photonic crystal resonators of similar to 0.5 ns is also estimated from power dependent loss and dispersion measurements. (C) 2005 Optical Society of America.
引用
收藏
页码:801 / 820
页数:20
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