Wang Hairong, Xiao Shali, Yang Qingguo, et al. Transient X-ray diffraction to diagnose elastic deformation of shocked lithium fluoride single crystal[J]. High Power Laser and Particle Beams, 2014, 26: 024004. doi: 10.3788/HPLPB201426.024004
Citation: Hu Yun, Zhao Xueqing, Xue Quanxi, et al. High contrast ratio ultraviolet electro-optical switch[J]. High Power Laser and Particle Beams, 2013, 25: 561-564. doi: 10.3788/HPLPB20132503.0561

High contrast ratio ultraviolet electro-optical switch

doi: 10.3788/HPLPB20132503.0561
  • Received Date: 2012-06-08
  • Rev Recd Date: 2012-10-22
  • Publish Date: 2013-03-05
  • Using the technique of short pulse generation by electro-optical (E-O) switches, a method for amplified spontaneous emission (ASE) suppression of the excimer lasers amplifier chain is established. An ultraviolet E-O switch with high contrast ratio was produced, and its principle experiments were carried out. The switch was applied to ASE suppression of the first pre-amplifier in excimer single-channel master oscillator power-amplifier (MOPA) system. The experimental result shows that the contrast ratio of the E-O switch is more than 2000, and the signal contrast ratio of output pulse of the pre-amplifier is promoted to over 20 000 after clipping. The result is beneficial to the following amplification of the laser pulse signal in the system, and provides a technical support for the system to obtain narrow-pulse signal output.
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