Tunable and Polarization-Independent Wedged Resonance Filter With 2D Crossed Grating

被引：16

作者：

Sheng, Bin ^{[1
,2
]}

Zhou, Hongyan ^{[1
,2
]}

Tao, Chunxian ^{[1
,2
]}

Zahid, Ali ^{[1
,2
]}

Ni, Zhengji ^{[1
,2
]}

Huang, Yuanshen ^{[1
,2
]}

Hong, Ruijin ^{[1
,2
]}

Zhang, Dawei ^{[1
,2
]}

机构：

[1] Univ Shanghai Sci & Technol, Minist Educ, Shanghai 200093, Peoples R China

[2] Univ Shanghai Sci & Technol, Shanghai Key Lab Modern Opt Syst, Engn Res Ctr Opt Instruments & Syst, Shanghai 200093, Peoples R China

来源：

IEEE PHOTONICS TECHNOLOGY LETTERS | 2016年 / 28卷 / 20期

基金：

中国国家自然科学基金;

关键词：

Polarization independent; guided-mode resonance filter; wedged waveguide layer; two-dimensional grating; GUIDED-MODE RESONANCE; 2-DIMENSIONAL GRATINGS; LIQUID-CRYSTAL; DIFFRACTION;

D O I：

10.1109/LPT.2016.2590942

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

0808 ; 0809 ;

摘要：

In this letter, a tunable and polarization-independent guided-mode resonance filter that has two-dimensional crossed grating on a wedged waveguide layer of Ta2O5 is fabricated and analysed for the communication band. The wedged waveguide layer is etched by the ion beam etching technique with a triangle-shaped mask, and the two-dimensional grating is made by holographic exposure technique. The measured spectra show that the filter can realize the property of polarization-independence at normal incidence. By the thickness gradient of the wedged layer, the filter is tunable in a range of 1599.9-1621.5 nm over a distance of 9 mm.

引用

页码：2211 / 2214

页数：4

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