Chinese Journal of Lasers, Volume. 45, Issue 3, 301001(2018)
Passively Q-switched Mode-Locked Low Threshold Tm,Ho∶LiLuF4 Laser with a Graphene Oxide Saturable Absorber
We demonstrate a stable, low threshold, passive Q-switched mode-locked Tm, Ho∶LiLuF4 solid-state laser with the graphene oxide (GO) prepared by vertical growth method as a saturable absorber and the special designed low threshold resonant cavity. The output power of the laser is as low as 73 mW, the stable mode-locked threshold power is 663 mW, and the corresponding power density of the GO saturable absorber is 76.4 μJ·cm-2. Typical Q-switched pulse envelope has a repetition frequency of 104.2 kHz and a pulse width of 30 μs. The repetition frequency of mode-locked pulse sequence is 178.6 MHz, and the modulation depth is close to 100%.
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Ling Weijun, Xia Tao, Dong Zhong, Zuo Yinyan, Li Ke, Liu Qing, Lu Feiping, Wang Yonggang. Passively Q-switched Mode-Locked Low Threshold Tm,Ho∶LiLuF4 Laser with a Graphene Oxide Saturable Absorber[J]. Chinese Journal of Lasers, 2018, 45(3): 301001
Category: laser devices and laser physics
Received: Sep. 15, 2017
Accepted: --
Published Online: Mar. 20, 2018
The Author Email: Zhong Dong (dz0212@foxmail.com)