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首页> 外文期刊>Optical and quantum electronics >Generation of long pulse excimer laser using a novel auto pre-pulse excitation scheme
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Generation of long pulse excimer laser using a novel auto pre-pulse excitation scheme

机译：利用新型自动预脉冲激发方案产生长脉冲准分子激光

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摘要

In this paper, we demonstrate a long pulse XeCl excimer laser using a novel, simple and easy to assemble auto pre-pulse excitation circuit. The auto pre-pulse excitation scheme involves a single high voltage switch for driving the UV pre-ionizer, pulser and sustainer which are isolated by saturable inductors made of ferrite cores without any additional circuit. The capacitor banks of exciter circuit are charged by single power supply. The experimental scheme demonstrated here, generates coherent optical laser pulses of duration ~ 60 ns which is an improvement of about 5 times when the laser is operated with conventional exciter. The laser is capable of generating laser pulses of energy 100 mJ reliably from a discharge volume of 75 cc at a repetition rate of 100 Hz. Long excimer pulses are desired for fiber optic beam delivery of high energy without damaging the core material for various applications. Moreover, long pulse allows large number of laser cavity round trips for the oscillating modes. The micro hole generated by focusing the long pulse XeCl laser beam on metal target shows improved characteristics of the output laser beam.
机译：在本文中，我们使用新颖，简单且易于组装的自动预脉冲激发电路演示了长脉冲XeCl准分子激光器。自动预脉冲激励方案包括一个单独的高压开关，用于驱动UV预电离器，脉冲发生器和保持器，这些开关由铁氧体磁芯制成的可饱和电感器隔离，无需任何附加电路。励磁电路的电容器组由单个电源充电。此处演示的实验方案生成了持续时间约为60 ns的相干光激光脉冲，与传统激振器一起运行时，相干光脉冲提高了约5倍。激光器能够以75 Hz的放电量以100 Hz的重复频率可靠地产生能量为100 mJ的激光脉冲。对于高能量的光纤束传输，期望长的准分子脉冲而不损坏用于各种应用的芯材。此外，长脉冲允许在振荡模式下进行大量的激光腔往返行程。通过将长脉冲XeCl激光束聚焦在金属靶上而产生的微孔显示出改善的输出激光束特性。

著录项

  • 来源
    《Optical and quantum electronics》 |2016年第9期|443.1-443.9|共9页
  • 作者

    N. S. Benerji; A. Singh; N. K. Varshnay; Bijendra Singh;

  • 作者单位

    Excimer Laser Section, LMPD, Raja Ramanna Centre for Advanced Technology, Indore, India;

    Excimer Laser Section, LMPD, Raja Ramanna Centre for Advanced Technology, Indore, India;

    Excimer Laser Section, LMPD, Raja Ramanna Centre for Advanced Technology, Indore, India;

    Excimer Laser Section, LMPD, Raja Ramanna Centre for Advanced Technology, Indore, India;

  • 收录信息 美国《科学引文索引》(SCI);美国《工程索引》(EI);
  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类
  • 关键词

    Excimer laser; Long pulse; Auto-prepulse; Micro hole;

    机译：准分子激光;长脉冲;自动预脉冲微孔;

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