光纤型宽调谐中红外激光光源的设计与研制

J4 ›› 2011, Vol. 28 ›› Issue (3): 287-292.

光纤型宽调谐中红外激光光源的设计与研制

王会娟¹ 常建华^1,2 赵恒磊¹ 赵佳生¹ 冯素娟¹ 郭强¹ 毛庆和¹

1中科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;
2 南京信息工程大学，电子与信息工程学院，江苏南京 210044

出版日期:2011-05-28 发布日期:2011-05-20
通讯作者: 毛庆和（1963－），研究员，博士生导师，主要从事纤维光学、激光物理与激光器件等方面的研究。 E-mail:mqinghe@aiofm.ac.cn
作者简介:王会娟（1985－），女，研究生，主要从事光纤激光器方面的研究。Email：wanghjbo@hotmail.com
基金资助:
中科院创新基金项目（CXJJ-10-M54）和安徽省重点实验室建设项目

Design and development of a fiber-type widely tunable mid-IR laser source

WANG Hui-Juan¹, CHANG Jian-Hua^1,2, ZHAO Heng-Lei¹, ZHAO Jia-Sheng¹, FENG Su-Juan¹, GUO Qiang¹, MAO Qing-He¹

1 Anhui Provincial Key Laboratory of Photonics Devices and Materials, Anhui Institute of Optics and Fine Mechanics, Chinese Academy of Sciences, Hefei 230031, China;
2 School of Electronics and Information Engineering, Nanjing University of Information Science & Technology, Nanjing 210044, China

Published:2011-05-28 Online:2011-05-20

摘要/Abstract

摘要：

报道一种光纤型宽调谐中红外差频产生（DFG）激光光源，该系统分别以掺镱光纤激光器（YDFL）和掺铒光纤激光器（EDFL）作为泵浦和信号源。为拓宽基频光调谐范围，采用了4个不同工作波段的YDFL，并通过电控光开关实现段间的快速切换，总调谐范围为1040-1110nm；采用电控偏振控制器 (ECPC)分别对基频光偏振态进行精确快速控制，以提高系统转化效率；利用PID算法和负反馈技术分别稳定泵浦LD温度和驱动电流，并将其工作状态通过LCD实时显示。测试结果表明，该中红外激光系统可在3.04-3.72μm内连续调谐。

关键词: 激光技术, 中红外, 差频产生, 光纤激光器, 宽调谐

Abstract:

A widely tunable mid-infrared difference frequency generation (DFG) laser source is reported which uses ytterbium doped fiber lasers (YDFL) and an erbium doped fiber laser (EDFL) as the fundamental lights respectively. By using an electronically controlled optical switch to choose one of different tuning bands respectively supplied by four tunable YDFLs and to quickly switch among them, the whole tuning range of the pump light is broadened to be between 1040 and 1110nm. Two electronically controlled polarization controllers (ECPC) respectively operating in 1060nm and 1550nm waveband are also used to precisely adjust polarizations of the pump and signal lights, so as to improve the conversion efficiency of the DFG system. The PID algorithm and feedback technique are used to control the temperature and driving current of the pump LDs, the controlled conditions are displayed with an LCD. The measurement results show that the mid-infrared laser system may be continuously tuned within the range of 3.04-3.72μm.

Key words: laser techniques, mid-infrared, difference frequency generation, fiber laser, widely tuning

中图分类号:

TN252

王会娟常建华赵恒磊赵佳生冯素娟郭强毛庆和. 光纤型宽调谐中红外激光光源的设计与研制[J]. J4, 2011, 28(3): 287-292.

WANG Hui-Juan, CHANG Jian-Hua, ZHAO Heng-Lei, ZHAO Jia-Sheng, FENG Su-Juan, GUO Qiang, MAO Qing-He. Design and development of a fiber-type widely tunable mid-IR laser source[J]. J4, 2011, 28(3): 287-292.

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