Narrow-bandwidth Bragg grating filter based on Ge-Sb-Se chalcogenide glasses

被引：6

作者：

Zhou, Chenfeng ^{[1
,2
]}

Zhang, Xuelei ^{[1
,2
]}

Luo, Ye ^{[3
,4
]}

Hou, Cheng ^{[1
,2
]}

Yang, Zhen ^{[1
,2
]}

Zhang, Wei ^{[1
,2
]}

Li, Lan ^{[3
,4
]}

Xu, Peipeng ^{[1
,2
]}

Xu, Tiefeng ^{[5
]}

机构：

[1] Ningbo Univ, Fac Elect Engn & Comp Sci, Ningbo 315211, Peoples R China

[2] Key Lab Photoelect Detecting Mat & Devices Zhejia, Ningbo 315211, Peoples R China

[3] Westlake Univ, Sch Engn, Key Lab 3D Micro Nano Fabricat & Characterizat Zh, 18 Shilongshan Rd, Hangzhou 310024, Peoples R China

[4] Westlake Inst Fin Adv Study, Inst Adv Technol, 18 Shilongshan Rd, Hangzhou 310024, Peoples R China

[5] Ningbo Univ, Ningbo Inst Oceanog, Ningbo 315211, Peoples R China

来源：

OPTICS EXPRESS | 2022年 / 30卷 / 08期

基金：

中国国家自然科学基金;

关键词：

SUPERCONTINUUM GENERATION; WAVE-GUIDES;

D O I：

10.1364/OE.450707

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Bragg grating (BG) filters play important roles in integrated photonics such as signal processing and optical sensing. In silicon-based counterpart photonic platforms, the application of narrow-bandwidth (Delta lambda) filters is often restrained by fabrication limitations. In this study, narrow-bandwidth BG filters based on Ge-Sb-Se chalcogenide materials are investigated. The structure of the filter is designed by optimizing the grating period, corrugation height, and grating number. The large corrugation of chalcogenide BG is more friendly and convenient for manufacturing process. The symmetric and asymmetric corrugation filters are then fabricated and characterized. Experimental results show a half-maximum bandwidth of 0.97 nm and 0.32 nm for symmetric and asymmetric filters, respectively, which demonstrates excellent narrow-bandwidth filtering performance of chalcogenide BG. (C) 2022 Optica Publishing Group under the terms of the Optica Open Access Publishing Agreement

引用

页码：12228 / 12236

页数：9

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