| Generation of near transform-limited ultrashort laser pulses in kilohertz chirped-pulse amplification system by compensating high order phase distortions |
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| 作者姓名： | 姜永亮 周冰 冷雨欣 陈晓伟 李儒新 徐至展 |
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| 作者单位： | State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences Shanghai 201800，State Key Laboratory of High Field Laser Physics Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences，Shanghai 201800，State Key Laboratory of High Field Laser Physics，Shanghai Institute of Optics and Fine Mechanics，Chinese Academy of Sciences Shanghai 201800 |
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| 基金项目： | This work was supported by the National Key Basic Research Special Foundation of China under Grant No. G1999075201. |
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| 摘 要： | The effects of gain narrowing and high order dispersions on the pulse duration in our kilohertz chirped-pulse amplification system have been compensated experimentally. Using an acousto-optic programmable dispersive filter (AOPDF), the spectral full-width at half-maximum (FWHM) is expanded from 30 to 50 nm. Stable laser pulses with the duration of 30 fs (FWHM), which is 1.07 times Fourier-transform-limitation, have been acquired by pre-compensating the high order phase distortions using the phase measured by spectral phase interferometry for direct electric-field reconstruction (SPIDER).
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