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用于锁模Nd:YAG激光器的单脉冲开关

Single pulse switch used in mode-locked Nd:YAG laser
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摘要  锁模Nd:YAG激光器选取单脉冲时,通常采用KD P普克尔盒。波长1.06μm的激光半波电压为6.6kV。应用冷阴极闸流管KN 22作为开关线路比较广泛,但近年来我们改用MOS场效应管线路代替KN 22,该线路性能稳定可靠,输出脉冲幅度为-6.6~-8kV,脉冲宽度5~10ns可调,触发晃动小于0.5ns,触发延时30~40ns,单脉冲选出率为100%。经长时间使用未发现异常,此线路也可在削波器及脉冲剪切等技术中应用。 When adopting mode-locked Nd:YAG laser to choose single pulse, KD~ *P Pockels cell is usually used. The half wavelength voltage is 6.6 kV to the laser of 1.06μm wavelength. In recent years, cold cathode thyratron KN-22 is widely used in circuit, but here KN-22 is replaced by MOSFET. The circuit with MOSFET has stable and credible performance, it can output a pulse of -6.6~-8kV and the pulse width can be adjusted from 5ns to 10ns. The circuit has a short time jitter (0.5ns), a delay of 30ns and high probability of selecting single pulse (100%). No abnormity is found after using a long time and the circuit can be also used as chopper and pulse shearer.
出处 《强激光与粒子束》 EI CAS CSCD 北大核心 2004年第11期1403-1405,共3页 High Power Laser and Particle Beams
基金 国家863计划项目资助课题
关键词 锁模激光器 单脉冲开关 MOS场效应管 Mode-locked laser Single pulse switch MOSFET
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参考文献8

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