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Optical and laser performances of a layered ReSe2 saturable absorber for a 2-µm solid laser
Optics & Laser Technology ( IF 4.6 ) Pub Date : 2020-11-01 , DOI: 10.1016/j.optlastec.2020.106685
Long Zhou , Xiaoming Duan , Wenqiang Xie , Tianqi Qi , Yuqiang Yang , Wenlong Yang , Jie Yuan , Yingjie Shen , Hong Liang , Linjun Li

In this paper, a dispersion solution of rhenium diselenide (ReSe2) was prepared using an ultrasonic decomposition method and prepared for use as a saturable absorber (SA) mirror by spin-coating. The optical characteristics of the ReSe2 SA were characterized to acquire those parameters which were saturated at 2 μm. A passively mode-locked (PML) Tm:YAG laser with an ReSe2 SA was first demonstrated in an experiment. Under a continuous wave (CW) regime, a 1940-mW output power was achieved at 2013.8 nm with a pump power of 22.4 W. In PML mode, a 320-mW average output power and a 580.5-ps pulse duration at 203.1 MHz were acquired from the PML Tm:YAG laser with an output wavelength of 2012.6 nm, corresponding to a pulse energy of 1.58 nJ and an optical-optical conversion efficiency of 2.2%.



中文翻译:

用于2 µm固体激光器的分层ReSe 2饱和吸收体的光学和激光性能

在本文中,采用超声分解法制备了二硒化((ReSe 2)的分散液,并通过旋涂法制备了可饱和吸收体(SA)镜。表征ReSe 2 SA的光学特性以获取在2μm处饱和的那些参数。具有ReSe 2的无源锁模(PML)Tm:YAG激光器SA最初是在实验中演示的。在连续波(CW)体制下,在2013.8 nm处实现了1940-mW的输出功率,泵浦功率为22.4W。在PML模式下,在203.1 MHz时的平均输出功率为320-mW,脉冲持续时间为580.5ps从PML Tm:YAG激光器获得,其输出波长为2012.6 nm,对应于1.58 nJ的脉冲能量和2.2%的光学转换效率。

更新日期:2020-11-02
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