AN EXTERNAL INJECTION PLAN FOR BEIJING FREE ELECTRON LASER
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摘要: 北京自由电子激光器（BFEL）是一台工作于中红外区Compton型FEL振荡器。本文结合BFEL装置,设计了一套完整的激光外注入光路,利用声光调QCO2激光器产生的10.6μm激光做激励源注入到BFEL光腔中,以缩短振荡建立时间,提高BFEL输出能量,改善输出激光的相干性。模拟计算结果是:当BFEL光腔中的外注入光强为自发辐射强度的105倍时,可使饱和振荡建立时间缩短35％,输出能量提高2倍。
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关键词:
- 激光外注入 /
- 注入耦合 /
- 迈克耳逊干涉仪型复合光腔
Abstract: The Beijing Free Electron Laser (BFEL) is a Compton regime, IR PEL oscillator. In the article, an injection experiment design has been put forward. A reduction in laser startup time and an increase in laser output energy can be obtained by seed injection from an external Q-switch CO2 laser. Numerical simulations of BFEL injection plan show that with an injecting laser 105 higher than the spontaneous emission in the optical cavity, the startup time is reduced by 35% and the ouptut laser energy is increased by 2 times. -
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