Photonic Sensors, 2014, 4 (3): 265, 网络出版: 2014-07-10  

Characteristics Research on Self-Amplified Distributed Feedback Fiber Laser

Characteristics Research on Self-Amplified Distributed Feedback Fiber Laser
作者单位
1 Shandong Key Laboratory of Optical Fiber Sensing Technologies, Laser Institute of Shandong Academy of Sciences, Jinan, 250014, China
2 School of Electrical Engineering and Telecommunications, University of New South Wales, Sydney, Australia 2052
摘要
Abstract
A distributed feedback (DFB) fiber laser with a ratio of the backward to forward output power of 1:100 was composed by a 45-mm-length asymmetrical phase-shifted fiber grating fabricated on the 50-mm erbium-doped photosensitive fiber. Forward output laser was amplified using a certain length of Nufern EDFL-980-Hp erbium-doped fiber to absorb the surplus pump power after the active phase-shifted fiber grating and get population inversion. By using OptiSystem software, the best fiber length of the EDFL to get the highest gain was simulated. In order to keep the amplified laser with the narrow line-width and low noise, a narrow-band light filter consisting of a fiber Bragg grating (FBG) with the same Bragg wavelength as the laser and an optical circulator was used to filter the amplified spontaneous emission (ASE) noise of the out-cavity erbium-doped fiber. The designed laser structure sufficiently utilized the pump power, and a DFB fiber laser with the 32.5-mW output power, 11.5-kHz line width, and -87-dB/Hz relative intensity noise (RIN) at 300 mW of 980 nm pump power was brought out.

Zhiqiang SONG, Haifeng QI, Jian GUO, Chang WANG, Gangding PENG. Characteristics Research on Self-Amplified Distributed Feedback Fiber Laser[J]. Photonic Sensors, 2014, 4(3): 265. Zhiqiang SONG, Haifeng QI, Jian GUO, Chang WANG, Gangding PENG. Characteristics Research on Self-Amplified Distributed Feedback Fiber Laser[J]. Photonic Sensors, 2014, 4(3): 265.

关于本站 Cookie 的使用提示

中国光学期刊网使用基于 cookie 的技术来更好地为您提供各项服务,点击此处了解我们的隐私策略。 如您需继续使用本网站,请您授权我们使用本地 cookie 来保存部分信息。
全站搜索
您最值得信赖的光电行业旗舰网络服务平台!