Picosecond all-optical switching in hydrogenated amorphous silicon microring resonators

被引：66
|
作者：
Pelc, Jason S. [1 ]
Rivoire, Kelley [1 ]
Vo, Sonny [1 ]
Santori, Charles [1 ]
Fattal, David A. [1 ]
Beausoleil, Raymond G. [1 ]
机构：
[1] Hewlett Packard Labs, Palo Alto, CA USA
来源：
OPTICS EXPRESS | 2014年 / 22卷 / 04期
关键词：
NONLINEAR REFRACTION; LIGHT;
D O I：
10.1364/OE.22.003797
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We utilize cross-phase modulation to observe all-optical switching in microring resonators fabricated with hydrogenated amorphous silicon (a-Si: H). Using 2.7-ps pulses from a mode-locked fiber laser in the telecom C-band, we observe optical switching of a cw telecom-band probe with full-width at half-maximum switching times of 14.8 ps, using approximately 720 fJ of energy deposited in the microring. In comparison with telecom-band optical switching in undoped crystalline silicon microrings, a-Si: H exhibits substantially higher switching speeds due to reduced impact of free-carrier processes. (C) 2014 Optical Society of America
引用
收藏
页码：3797 / 3810
页数：14
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