Enhanced saturable absorption of MoS2 black phosphorus composite in 2 μm passively Q-switched Tm: YAP laser

Yang Xue; Zhenda Xie; Zhilin Ye; Xiaopeng Hu; Jinlong Xu; Han Zhang

doi:10.3788/COL201816.020018

Journals >Chinese Optics Letters >Volume 16 >Issue 2 >Page 020018 > Article

Chinese Optics Letters
Vol. 16, Issue 2, 020018 (2018)

{MoS}_{2}

black phosphorus composite in 2 μm passively Q-switched Tm: YAP laser

Yang Xue¹, Zhenda Xie², Zhilin Ye¹, Xiaopeng Hu^1、3, Jinlong Xu^2、*, and Han Zhang⁴

Author Affiliations

¹National Laboratory of Solid State Microstructures, Nanjing University, Nanjing 210093, China

²School of Electronic Science and Engineering, Nanjing University, Nanjing 210093, China

³E-mail: xphu@nju.edu.cn

⁴College of Optoelectronic Engineering, Shenzhen University, Shenzhen 518060, China

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DOI: 10.3788/COL201816.020018 Cite this Article Set citation alerts

Yang Xue, Zhenda Xie, Zhilin Ye, Xiaopeng Hu, Jinlong Xu, Han Zhang. Enhanced saturable absorption of

{MoS}_{2}

black phosphorus composite in 2 μm passively Q-switched Tm: YAP laser[J]. Chinese Optics Letters, 2018, 16(2): 020018 Copy Citation Text

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Abstract

We report the fabrication of an

{MoS}_{2}

black phosphorus (BP) composite saturable absorber by liquid phase exfoliation and the spin-coating method and further exploitation to build a 2 μm passively Q-switched Tm:YAP laser. Such a composite based Q-switched laser with a duration of 488 ns and corresponding peak power of 85.9 W is obtained, which shows an improved saturable absorption effect than that of single

{MoS}_{2}

(616 ns, 68.7 W) and BP (932 ns, 22.4 W). The results indicate that simple and reasonable fabrication of the vertical composite from two-dimensional atomic layer materials opens up the possibility to create an unprecedented saturable absorber with exciting properties.