Switchable multiwavelength thulium-doped fiber ring lasers

Shui Zhao; Ping Lu; Deming LiuJiangshan Zhang

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Switchable multiwavelength thulium-doped fiber ring lasers

机译：Switchable multiwavelength thulium-doped fiber ring lasers

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摘要

Two kinds of thulium-doped fiber ring lasers based on a spatial mode beating filter and comb filtering effect are presented and experimentally demonstrated, which all show multiwavelength laser spectrum around 2 μm. In the implementation of the first type of experiment configuration by the use of a piece of multimode fiber (MMF) as a spatial mode beating filter, dual-,triple-, and quadruple-wavelengths appeared whose extinction noise ratio is 25 dB by adjusting the angle of polarization controller. Different wavelength spaces are obtained by inserting different lengths of MMF. The second type is achieved by inserting a Sagnac loop mirror, which was constructed by a 3-dB coupler and a piece of polarization maintaining fiber. Seven stable wavelengths with channel spacing of 0.65 nm and an extinction ratio of 35 dB was achieved. These systems are simple and easy to construct, which can be useful for 2 μm wavelength-division-multiplexed applications.

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来源
《Optical Engineering》 |2013年第8期|086105-1-086105-7|共7页
作者
Shui Zhao; Ping Lu; Deming LiuJiangshan Zhang;
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作者单位

Huazhong University of Science and Technology, National Engineering Laboratory for Next Generation Internet Access System, Wuhan 430074, China;

Huazhong University of Science and Technology, Department of Electronics and Information Engineering, Wuhan 430074, China;

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收录信息美国《科学引文索引》(SCI);美国《工程索引》(EI);
原文格式 PDF
正文语种英语
中图分类计量学;
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Switchable multiwavelength thulium-doped fiber ring lasers

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