光谱精确可控Sagnac环滤波器及其在ASE光源中的应用

J4 ›› 2016, Vol. 33 ›› Issue (2): 170-176.

光谱精确可控Sagnac环滤波器及其在ASE光源中的应用

冯素娟¹,李文彩²,刘昊炜¹,张骥¹,刘晔¹,毛庆和³

中国科学院安徽光学精密机械研究所，安徽省光子器件与材料重点实验室，安徽合肥 230031

收稿日期:2015-12-08 修回日期:2015-12-14 出版日期:2016-03-28 发布日期:2016-03-28
通讯作者: 冯素娟（1978－），女，副研究员，研究方向为光纤激光技术 E-mail: fengsj@aiofm.ac.cn
基金资助:
Supported by National Natural Science Foundation of China （国家自然科学基金，1377044, 61275186）, Natural Science Foundation of Anhui Province（安徽省自然科学基金，1308085QF110）

Controllable spectral Sagnac loop filter and its application in ASE light sources

FENG Sujuan, LI Wencai, LIU Haowei, ZHANG Ji, LIU Ye,MAO Qinghe

Anhui Provincial Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031， China

Received:2015-12-08 Revised:2015-12-14 Published:2016-03-28 Online:2016-03-28

摘要/Abstract

摘要： 研究了一种结构新颖光谱特性可精确控制的Sagnac环滤波器，这种滤波器通过在传统Sagnac环中插入两段高双折射光纤和一个偏振控制器构成。利用等效光路和传输矩阵法理论研究了该滤波器的滤波特性，研究结果表明，固定两段高双折射光纤参数，仅通过调整偏振控制器的状态，便可精确控制Sagnac环滤波器的滤波光谱特性。将Sagnac环滤波器用于掺铒光纤（EDF）放大的自发辐射（ASE）光源的光谱平坦滤波，通过调节偏振控制器三个波片的倾斜角度，实验获得了光谱平坦的宽带ASE激光。

关键词: Sagnac环滤波器；ASE光源；高双折射光纤；偏振控制器

Abstract: The precisely controlled spectral characteristics of a novel Sagnac loop filter was studied, which is structured by insertting two segments of high birefringence optical fiber and a fiber polarization controller into a conventional optical fiber Sagnac loop filter. The study results based on the equivalent optical-path analysis and transfer matrix method show that the spectral characteristics of the Sagnac loop filter can be precisely controlled, by changing the polarization controller status, when the birefringence parameters of birefringence fiber are fixed. The Sagnac loop filter can be used to flat the spectra of erbium-doped fiber (EDF) Amplified Spontaneous Emission (ASE) light source, and the experimental results show that the broadband EDF ASE laser spectra is flat, through control the tilt angle of the three PC wave-plates.

Key words: Sagnac loop filter; ASE light source; high birefringence fiber; polarization controller

冯素娟李文彩刘昊炜张骥刘晔毛庆和. 光谱精确可控Sagnac环滤波器及其在ASE光源中的应用[J]. J4, 2016, 33(2): 170-176.

FENG Sujuan, LI Wencai, LIU Haowei, ZHANG Ji, LIU Ye,MAO Qinghe. Controllable spectral Sagnac loop filter and its application in ASE light sources[J]. J4, 2016, 33(2): 170-176.

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