Linearly polarized polarization-maintaining Er3+-doped fluoride fiber laser in the mid-infrared

Hong-Yu Luo, Yong-Zhi Wang
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引用次数: 4

Abstract

We demonstrated the ∼2.8-μm and ∼3.5-μm linearly polarized continuous wave (CW) laser outputs from a polarization-maintaining (PM) Er3+-doped fluoride fiber laser. By introducing a film polarizer into the cavity to select the laser polarization orientation, the ∼2.8-μm linearly polarized CW laser with a high polarization extinction ratio (PER) of ∼23 ​dB and maximum output power of 2.37 ​W was achieved under double-end pumping at 976 ​nm. By adding another 1981-nm pump source simultaneously, the ∼3.5-μm linearly polarized CW laser was also obtained, giving higher PER of ∼27 ​dB and maximum output power of 307 ​mW which is only limited by the available power of 1981-nm pump. To the best of our knowledge, this is the first report on a mid-infrared linearly polarized CW PM fiber laser in the >2.5-μm mid-infrared region. This work not only opens up opportunities for some new mid-infrared applications, but also provides a promising platform for developing high-stability and versatile mid-infrared laser sources.

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中红外线偏振保偏铒掺氟光纤激光器
我们展示了保偏(PM)掺Er3+氟光纤激光器的~ 2.8 μm和~ 3.5 μm线偏振连续波(CW)激光输出。在976 nm双端泵浦下,通过在腔内引入薄膜偏振器选择激光偏振方向,获得了偏振消光比(PER)为~ 23 dB、最大输出功率为2.37 W的~ 2.8 μm线偏振连续激光器。通过同时加入另一个1981-nm泵浦源,获得了~ 3.5 μm线偏振连续波激光器,PER高达~ 27 dB,最大输出功率为307 mW,仅受1981-nm泵浦源可用功率的限制。据我们所知,这是在>2.5-μm中红外区域首次报道中红外线偏振连续波PM光纤激光器。这项工作不仅为一些新的中红外应用开辟了机会,而且为开发高稳定性和多用途的中红外激光源提供了一个有前途的平台。
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来源期刊
Journal of Electronic Science and Technology
Journal of Electronic Science and Technology Engineering-Electrical and Electronic Engineering
CiteScore
4.30
自引率
0.00%
发文量
1362
审稿时长
99 days
期刊介绍: JEST (International) covers the state-of-the-art achievements in electronic science and technology, including the most highlight areas: ¨ Communication Technology ¨ Computer Science and Information Technology ¨ Information and Network Security ¨ Bioelectronics and Biomedicine ¨ Neural Networks and Intelligent Systems ¨ Electronic Systems and Array Processing ¨ Optoelectronic and Photonic Technologies ¨ Electronic Materials and Devices ¨ Sensing and Measurement ¨ Signal Processing and Image Processing JEST (International) is dedicated to building an open, high-level academic journal supported by researchers, professionals, and academicians. The Journal has been fully indexed by Ei INSPEC and has published, with great honor, the contributions from more than 20 countries and regions in the world.
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