Grating-coupled silicon-on-sapphire integrated slot waveguides operating at mid-infrared wavelengths

被引：55
|
作者：
Zou, Yi [1 ]
Subbaraman, Harish [2 ]
Chakravarty, Swapnajit [2 ]
Xu, Xiaochuan [2 ]
Hosseini, Amir [2 ]
Lai, Wei-Cheng [1 ]
Wray, Parker [1 ]
Chen, Ray T. [1 ]
机构：
[1] Univ Texas Austin, Dept Elect & Comp Engn, Microelect Res Ctr, Austin, TX 78758 USA
[2] Omega Opt Inc, Austin, TX 78757 USA
来源：
OPTICS LETTERS | 2014年 / 39卷 / 10期
关键词：
CONFINING LIGHT; STRIP;
D O I：
10.1364/OL.39.003070
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We demonstrate subwavelength bidirectional grating (SWG) coupled slot waveguide fabricated in silicon-on-sapphire for transverse electric polarized wave operation at 3.4 mu m wavelength. Coupling efficiency of 29% for SWG coupler is experimentally achieved. Propagation loss of 11 dB/cm has been experimentally obtained for slot waveguides. Two-step taper mode converters with an insertion loss of 0.13 dB are used to gradually convert the strip waveguide mode into slot waveguide mode. (C) 2014 Optical Society of America
引用
收藏
页码：3070 / 3073
页数：4
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