Broadband polarization-insensitive optical switch on silicon-on-insulator platform

被引：34

作者：

Yang, Huizhan ^{[1
]}

Kuan, Yunxin ^{[1
]}

Xiang, Tuowen ^{[1
]}

Zhu, Yuntao ^{[2
]}

Cai, Xinlun ^{[2
]}

Liu, Liu ^{[1
]}

机构：

[1] South China Normal Univ, Ctr Opt & Electromagnet Res, Guangdong Prov Key Lab Opt Informat Mat & Technol, Higher Educ Mega Ctr,South China Acad Adv Optoele, Sci Bldg 5, Guangzhou 510006, Guangdong, Peoples R China

[2] Sun Yat Sen Univ, Sch Microelect, State Key Lab Optoelect Mat & Technol, Guangzhou 510275, Guangdong, Peoples R China

来源：

OPTICS EXPRESS | 2018年 / 26卷 / 11期

关键词：

WAVE-GUIDES; DIVERSITY; SPLITTER; COUPLERS;

D O I：

10.1364/OE.26.014340

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

A novel configuration for realizing a polarization-insensitive optical switch on silicon-on-insulator of 340nm-thick top-silicon layer is demonstrated, using submicron sized waveguides. The device is based on the Mach-Zehnder interferometer structure. By carefully designing the 3dB couplers and the delay-line waveguides in the device, it is possible to achieve a similar switching behavior for all polarizations. Theoretical analyses indicate that extinction ratios of better than -25dB and insertion losses of better than -0.6dB can be obtained simultaneously for transverse-electric and transverse magnetic polarized modes in the whole C-band. Experimental results also confirm the polarization-insensitive property of the proposed optical switch. Extinction ratios of about -15dB are measured for both polarizations. (C) 2018 Optical Society of America under the terms of the OSA Open Access Publishing Agreement

引用

页码：14340 / 14345

页数：6

共 14 条

[1] Polarization-transparent microphotonic devices in the strong confinement limit [J].