Tunable Fabry-Perot filter using hollow-core photonic bandgap fiber and micro-fiber for a narrow-linewidth laser

被引：16
作者：
Wang, Xiaozhen [1 ]
Zhu, Tao [1 ,2 ]
Chen, Liang [1 ]
Bao, Xiaoyi [1 ]
机构：
[1] Univ Ottawa, Dept Phys, Fiber Opt Grp, Ottawa, ON K1N 6N5, Canada
[2] Chongqing Univ, Key Lab Optoelect Technol & Syst, Minist Educ, Chongqing 400044, Peoples R China
来源：
OPTICS EXPRESS | 2011年 / 19卷 / 10期
基金：
加拿大自然科学与工程研究理事会;
关键词：
RING LASER; MODE OPERATION; CRYSTAL FIBER; TEMPERATURE; SENSOR; ETALON;
D O I：
10.1364/OE.19.009617
中图分类号：
O43 [光学];
学科分类号：
070207 ; 0803 ;
摘要：
A novel tunable fiber Fabry-Perot (FP) filter is proposed and demonstrated by using a hollow-core photonic bandgap fiber (HC-PBF) and a micro-fiber. The interference cavity is a hollow core of HC-PBF. One of the reflection mirrors is the splicing point between a section of HC-PBF and a single mode fiber. The other reflection mirror is a gold-coated end of micro-fiber that uses chemical etching process to obtain the similar diameter as the core of HC-PBF. Hence the movable mirror can be adjusted with long distance inside the hollow core of HC-PBF. Tunable FP filter is used as a mode selecting component in the reflection mode to implement stable single longitudinal mode (SLM) operation in a ring laser. With FP cavity length of 0.25 +/- 0.14 mm, the wavelength of SLM laser can be tuned over 1554-1562 nm with a tuning step of 0.2-0.3 nm, a side-mode suppression ratio (SMSR) of 32-36 dB and a linewidth of 3.0-5.1 kHz. With FP cavity length of 2.37 +/- 0.37 mm, the SLM laser can be tuned over 1557.3-1560.2 nm with a tuning step of 0.06-0.1 nm, a SMSR of 44-51 dB and a linewidth of 1.8-3.0 kHz. (C) 2011 Optical Society of America
引用
收藏
页码：9617 / 9625
页数：9
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