Multi-Band Thermal Optical Switch Based on Nematic Liquid Crystal Filled Photonic Crystal Fiber

被引：16

作者：

Tian, Shuang ^{[1
,2
]}

Yang, Tianyu ^{[3
]}

Zhang, Junxi ^{[1
,2
]}

Xie, Kang ^{[4
]}

Ma, Jiajun ^{[5
]}

Hong, Liang ^{[6
]}

Luo, Yanhua ^{[7
]}

Hu, Zhijia ^{[1
,8
]}

机构：

[1] Hefei Univ Technol, Lab Opt Fibers & Micronano Photon, Sch Instrument Sci & Optoelect Engn, Hefei 230009, Anhui, Peoples R China

[2] Anhui Univ, Minist Educ, Informat Mat & Intelligent Sensing Lab Anhui Prov, Key Lab Optoelect Informat Acquisit & Manipulat, Hefei 230601, Anhui, Peoples R China

[3] Chinese Acad Sci, Shenzhen Inst Adv Technol, Optoelect Engn & Technol, Shenzhen 518055, Peoples R China

[4] Zaozhuang Univ, Sch Optoelect Engn, Zaozhuang 277160, Peoples R China

[5] Southwest Univ Sci & Technol, State Key Lab Environm Friendly Energy Mat, Mianyang 621000, Sichuan, Peoples R China

[6] Anhui TianKai Opt Commun Technol Co LTD, Huaibei 235100, Peoples R China

[7] Univ New South Wales, Sch Elect Engn & Telecommun, Sydney, NSW 2052, Australia

[8] Anhui Univ, Informat Mat & Intelligent Sensing Lab Auhui Prov, Key Lab Optoelect Informat Acquisit & Manipulat, Minist Educ,Sch Phys & Mat Sci, Hefei 230601, Anhui, Peoples R China

来源：

JOURNAL OF LIGHTWAVE TECHNOLOGY | 2021年 / 39卷 / 10期

基金：

中国国家自然科学基金;

关键词：

Optical switches; Temperature sensors; Refractive index; Interference; Extinction ratio; Photonic band gap; Optical variables control; Communication switch and temperature sensor; liquid crystal; liquid crystal filled photonic crystal fiber; thermo-optical switch; REFRACTIVE-INDEX; SENSOR; COMPACT;

D O I：

10.1109/JLT.2021.3064861

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：

By filling the liquid crystal (LC) in the air holes of a photonic crystal fiber (PCF) with 8 mm length, a compact multi-band thermal optical switch is proposed here including two important telecommunication band, i.e., 1265 to 1317 nm and 1508 to 1568 nm. Within the bandwidth, the extinction ratio can be as high as 30 dB. Under the combined action of the bandgap-guiding mechanism and the interference effect, a temperature change of only 1 degrees C after clearing temperature (T-c) of the LC induces multi-band thermal optical switch of the LC-filled PCF. It is also noted that the transmission spectrum of the LC-filled PCF is quite sensitive to the ambient temperature. The consequent thermal sensitive is 3.9 nm/degrees C, making it a very good candidate for monitoring the temperature herein.

引用

页码：3297 / 3302

页数：6

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