High-power MoTe_2-based passively Q-switched erbium-doped fiber laser

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英文篇名：High-power MoTe_2-based passively Q-switched erbium-doped fiber laser 作者：刘孟丽 ; 刘文军 ; 闫培光 ; 方少波 ; 滕浩 ; 魏志义 英文作者：Mengli Liu;Wenjun Liu;Peiguang Yan;Shaobo Fang;Hao Teng;Zhiyi Wei;State Key Laboratory of Information Photonics and Optical Communications, School of Science,Beijing University of Posts and Telecommunications;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences;Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University; 中文刊名：GXKB 英文刊名：中国光学快报(英文版) 机构：State Key Laboratory of Information Photonics and Optical Communications, School of Science,Beijing University of Posts and Telecommunications;Beijing National Laboratory for Condensed Matter Physics, Institute of Physics, Chinese Academy of Sciences;Shenzhen Key Laboratory of Laser Engineering, College of Optoelectronic Engineering, Shenzhen University; 出版日期：2018-02-10 出版单位：Chinese Optics Letters 年：2018 期：v.16 基金：supported by the National Natural Science Foundation of China(Grant Nos.11674036,11078022,and 61378040);; the Beijing Youth Top-notch Talent Support Program(Grant No.2017000026833ZK08);; the Fund of State Key Laboratory of Information Photonics and Optical Communications(Beijing University of Posts and Telecommunications,Grant Nos.IPOC2016ZT04 and IPOC2017ZZ05) 语种：英文; 页：GXKB201802007 页数：5 CN：02 ISSN：31-1890/O4 分类号：63-67

摘要

Materials in the transition metal dichalcogenide family, including WS_2, MoS_2, WSe_2, and MoSe_2, etc., have captured a substantial amount of attention due to their remarkable nonlinearities and optoelectronic properties.Compared with WS_2 and MoS_2, the monolayered MoTe_2 owns a smaller direct bandgap of 1.1 eV. It is beneficial for the applications in broadband absorption. In this letter, using the magnetron sputtering technique, MoTe_2 is deposited on the surface of the tapered fiber to be assembled into the saturable absorber. We first implement the MoTe_2-based Q-switched fiber laser operating at the wavelength of 1559 nm. The minimum pulse duration and signal-to-noise ratio are 677 ns and 63 dB, respectively. Moreover, the output power of 25 mW is impressive compared with previous work. We believe that MoTe_2 is a promising 2D material for ultrafast photonic devices in the high-power Q-switched fiber lasers.
        Materials in the transition metal dichalcogenide family, including WS_2, MoS_2, WSe_2, and MoSe_2, etc., have captured a substantial amount of attention due to their remarkable nonlinearities and optoelectronic properties.Compared with WS_2 and MoS_2, the monolayered MoTe_2 owns a smaller direct bandgap of 1.1 eV. It is beneficial for the applications in broadband absorption. In this letter, using the magnetron sputtering technique, MoTe_2 is deposited on the surface of the tapered fiber to be assembled into the saturable absorber. We first implement the MoTe_2-based Q-switched fiber laser operating at the wavelength of 1559 nm. The minimum pulse duration and signal-to-noise ratio are 677 ns and 63 dB, respectively. Moreover, the output power of 25 mW is impressive compared with previous work. We believe that MoTe_2 is a promising 2D material for ultrafast photonic devices in the high-power Q-switched fiber lasers.

引文

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