Thermally tunable dual-core photonic bandgap fiber based on the infusion of a temperature-responsive liquid

被引：29
作者：
Du, Jiangbing
Liu, Yange [1 ]
Wang, Zhi
Liu, Zhanyuan
Zou, Bing
Jin, Long
Liu, Bo
Kai, Guiyun
Dong, Xiaoyi
机构：
[1] Nankai Univ, Key Lab Optoelect Informat Sci & Technol, Minist Educ, Tianjin 300071, Peoples R China
[2] Nankai Univ, Inst Modern Opt, Tianjin 300071, Peoples R China
来源：
OPTICS EXPRESS | 2008年 / 16卷 / 06期
关键词：
D O I：
10.1364/OE.16.004263
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A dual-core photonic bandgap fiber ( PBGF) is demonstrated by infusing a high-index liquid into a dual-core air-silica photonic crystal fiber ( PCF). Extremal couplings have been experimentally observed. The temperature tunable characteristics of the dual-core PBGF's bandgap guiding and dual-core coupling are experimentally and numerically investigated. When we rise temperature, the dual-core PBGFs' bandgaps have been changed: compression of bandwidth, blue-shift and depression of the guiding band. Especially, the dual-core coupling is temperature tunable because of the tunability of the infusion liquid's index. We find that the rise of temperature increases the coupling length which results in the blue-shift of the resonant peak wavelengths with a speed of 1.9nm/degrees C, for a 20mm dual-core PBGF. (c) 2008 Optical Society of America.
引用
收藏
页码：4263 / 4269
页数：7
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