RF excited waveguide CO2 laser with controllable width of cavity-dumping pulse

WANG Jian-yin; ZHOU Ding-fu; CHEN Jian-guo; SUN Peng; YANG Ze-hou; CHEN Yong

A new cavity-dumping RF excited waveguide CO2 laser which may be used in a heterodyne imaging lidar system is presented.The relationship between the fall delay of high voltage(HV) pulse and the width of cavity-dumping laser pulse is calculated theoretically.In our experiment,the width of cavity-dumping laser pulse could be controlled by adjusting the equivalent load parameters of HV pulse power supply.The cavity-dumping laser pulses with full width at half maximum(FWHM) about 30ns,peak power above(2kW),are obtained at the repetition rate up to 70kHz,which meet the requirement of the pulse heterodyne imaging lidar system.

Corresponding author: CHEN Jian-guo, optics_lab@163.com;

1. Department of Optoelectronics, Sichuan University, Chengdu 610064, China;

2. Southwest Institute of Technical Physics, Chengdu 610041, China

Received Date: 2005-12-30

Accepted Date: 2006-04-26

Available Online: 2007-02-25

Abstract: A new cavity-dumping RF excited waveguide CO2 laser which may be used in a heterodyne imaging lidar system is presented.The relationship between the fall delay of high voltage(HV) pulse and the width of cavity-dumping laser pulse is calculated theoretically.In our experiment,the width of cavity-dumping laser pulse could be controlled by adjusting the equivalent load parameters of HV pulse power supply.The cavity-dumping laser pulses with full width at half maximum(FWHM) about 30ns,peak power above(2kW),are obtained at the repetition rate up to 70kHz,which meet the requirement of the pulse heterodyne imaging lidar system.

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Reference (10)

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RF excited waveguide CO2 laser with controllable width of cavity-dumping pulse

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References

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通讯作者: 陈斌, bchen63@163.com

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