All-fiber Mach-Zehnder interferometer based on two liquid infiltrations in a photonic crystal fiber

被引：41
作者：
Liou, Jia-hong
Yu, Chin-ping [1 ]
机构：
[1] Natl Sun Yat Sen Univ, Dept Photon, Kaohsiung 80424, Taiwan
来源：
OPTICS EXPRESS | 2015年 / 23卷 / 05期
关键词：
REFRACTIVE-INDEX MEASUREMENT; OPTICAL-FIBER; LATERAL-OFFSET; TEMPERATURE; STRAIN; GRATINGS; CORE;
D O I：
10.1364/OE.23.006946
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
We propose a novel all-fiber Mach-Zehnder interferometer (MZI) fabricated by infiltrating two separated liquid sections along a PCF. Due to the reduced effective index difference between the core region and the liquid-filled cladding region, the guided field in the liquid sections possesses a larger mode field area and can simultaneously induce the core mode and cladding modes of the empty PCF to form a MZI. The measured results demonstrate that very clear interference spectra can be obtained. By increasing the length of the MZIs, the decreased average fringe spacing can be observed. We have also measured the temperature sensitivity of our proposed PCF-based MZIs. Due to the existence of the two liquid sections, the temperature sensitivities can be enlarged to -0.176nm/degrees C and -0.53dB/degrees C. (C) 2015 Optical Society of America
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收藏
页码：6946 / 6951
页数：6
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