Controllable All-Solid-State Pulsed Laser Based on Graphene Capacitor Devices
Chen Tiantian, Dai Tengfei, Chen Chaoran, Liu Xiang, and Chang Jianhua
ConclusionsThe paper introduces the fabrication, characterization and analysis of a novel graphene capacitor, which can be used as an effective saturable absorber modulator in a passive Q-switched system. The photoelectric interaction mechanism of the device is studied based on its electrical transmission and spectral absorption properties. Due to the change of Fermi level and carrier density, the absorption properties of graphene in the device can be adjusted by gate voltage without changing the properties of SA material. The output characteristics of all-solid-state pulse laser can be adjusted flexibly under ultra-low electric modulation power (~13 pA current and 1 nW power). It is applied to the Nd∶ YVO4 all solid state laser system, and the stable pulse output at 532.04 nm wavelength is achieved. The laser absorption pump power is kept constant, and the gate voltage is changed. The pulse duration of the Q-switched output can be compressed from 1.1 μs to 345 ns. This structure is expected to further promote the development of tunable pulse lasers from visible light to mid-infrared band. In particular, passive Q-switching/mode-locking devices based on graphene devices will be used in future applications such as infrared measurement, projection display, and optical modulation.
  • Jan. 18, 2022
  • Chinese Journal of Lasers
  • Vol.49 Issue, 3 0301003 (2022)
  • DOI:10.3788/CJL202249.0301003
Linewidth of Mutually Injection-Locked Semiconductor Lasers in Weak Coupling Regime
Ke Xu, and Deng Lewu
  • Jan. 18, 2022
  • Chinese Journal of Lasers
  • Vol.49 Issue, 3 0301001 (2022)
  • DOI:10.3788/CJL202249.0301001
The Introduction of Special Issue on Technology and Application of Advanced Mid-Infrared Lasers
Ruan Shuangchen, Hou Jing, Li Jianfeng, Qin Guanshi, and Ye Xisheng
  • Jan. 14, 2022
  • Chinese Journal of Lasers
  • Vol.49 Issue, 1 0101000 (2022)
  • DOI:
The Introduction of Special Issue on Technology and Application of Advanced Mid-Infrared Lasers
Ruan Shuangchen, Hou Jing, Li Jianfeng, Qin Guanshi, and Ye Xisheng
  • Jan. 14, 2022
  • Chinese Journal of Lasers
  • Vol.49 Issue, 1 0101000 (2022)
  • DOI:
[in Chinese]
Ruan Shuangchen, Hou Jing, Li Jianfeng, Qin Guanshi, and Ye Xisheng
  • Jan. 10, 2022
  • Chinese Journal of Lasers
  • Vol.49 Issue, 1 0101000 (2022)
  • DOI:
Fabrication of Mid-Infrared ZnGeP2 Crystals and Devices with Large Apertures and Ultra-Low Absorption Coefficients
Yuan Zerui, Dou Yunwei, Fang Pan, Chen Ying, Yin Wenlong, and Kang Bin
  • Dec. 24, 2021
  • Chinese Journal of Lasers
  • Vol.49 Issue, 1 0101023 (2022)
  • DOI:10.3788/CJL202249.0101023
GSA and ESA Dual-Wavelength Pumped 2.3 μm Tm∶YAP Lasers
Wang Fei, Huang Haitao, Bao Yushuo, Li Zihan, and Shen Deyuan
  • Dec. 24, 2021
  • Chinese Journal of Lasers
  • Vol.49 Issue, 1 0101022 (2022)
  • DOI:10.3788/CJL202249.0101022