All-optical switching in long-period fiber grating with highly nonlinear chalcogenide fibers

被引：29

作者：

Wang, Leilei ^{[1
,2
]}

Zeng, Jianghui ^{[1
,2
]}

Zhu, Liang ^{[1
,2
]}

Yang, Dandan ^{[1
,2
]}

Zhang, Qian ^{[1
,2
]}

Zhang, Peiqing ^{[1
,2
]}

Wang, Xunsi ^{[1
,2
]}

Dai, Shixun ^{[1
,2
]}

机构：

[1] Ningbo Univ, Adv Technol Res Inst, Lab Infrared Mat & Devices, Ningbo 315211, Zhejiang, Peoples R China

[2] Key Lab Photoelect Detect Mat & Devices, Ningbo 315211, Zhejiang, Peoples R China

来源：

APPLIED OPTICS | 2018年 / 57卷 / 34期

基金：

中国国家自然科学基金;

关键词：

GE-AS-SE; GLASSES; TEMPERATURE; SENSOR;

D O I：

10.1364/AO.57.010044

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

All-optical switching in long-period fiber grating (LPFG) with Ge-As-Se chalcogenide fibers was proposed. The switching performances at different resonant wavelengths and dadding modes were systematically investigated using coupled-mode theory. By utilizing the ultra-high nonlinearity of chalcogenide glass, the switching power threshold of the proposed LPFG switching at 1.55 mu m was 105 WV/cm(2) with power coupling for the low-order LP09 dadding mode, which was approximately 200 times lower than that of silica LPFG. Furthermore, the temperature stability of the proposed LPFG switching was examined. The optical switching instability due to the laser thermal effect can be well suppressed by optimizing the dadding radius and grating period. Considering the balance between temperature sensitivity and switching power threshold, an all-optical switch with temperature sensitivity of 51 pm/degrees C was finally realized by selecting the LP051 mode with a cladding radius of 39 mu m. (C) 2018 Optical Society of America

引用

页码：10044 / 10050

页数：7

共 33 条

[1] Nonlinear optical properties of chalcogenide glass fibers and their application to all-optical switching [J].