Ultracompact nonreciprocal optical isolator based on guided resonance in a magneto-optical photonic crystal slab

被引:74
作者
Fang, Kejie [1 ]
Yu, Zongfu [2 ]
Liu, Victor [2 ]
Fan, Shanhui [2 ]
机构
[1] Stanford Univ, Dept Phys, Stanford, CA 94305 USA
[2] Stanford Univ, Ginzton Lab, Stanford, CA 94305 USA
基金
美国国家科学基金会;
关键词
PULSED-LASER DEPOSITION; TRANSMISSION; DEFECTS;
D O I
10.1364/OL.36.004254
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We design an ultracompact optical isolator with normal incident geometry that operates with a bandwidth that is substantial for a device of this size. For operation in a telecommunication wavelength of 1: 55 mu m, the thickness of the device is less than 1 mu m and the device supports an operating bandwidth of 400 GHz over which the minimum contrast ratio exceeds 25 dB. Our design utilizes guided resonance in a photonic crystal slab to enhance magneto-optical effects, and exploits interference effects among multiple resonances to create desired transmission spectral line shapes. (C) 2011 Optical Society of America
引用
收藏
页码:4254 / 4256
页数:3
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