Femtosecond pulse compression in external cavity

LIU Wen-jun; LI Hua-jun; QU Shi-liang; CHEN Xiang-jun

In order to get shorter pulse width to improve time resolution,femtosecond pulse was compressed by using two prisms and a reflective mirror.Femtosecond pulse was measured with a home-made second-harmonic generation frequency-resolved optical gating.The temporal width of input pulse was 89fs,the time-bandwidth product was 0.9096,the minimum error was 2.4‰ and the average power of the input light was about 480mW.The width of compressed pulse was 22fs,the time-bandwidth product was 0.44203,the minimum error was 1.1‰ and the average power of the output light was about 250mW.The compression ratio was 4:1,which was higher than that in the related report.The experimental results indicate that the compressing device is valid and the result is useful for getting shorter pulses.

1. Department of Optics and Electronics Sciences, Harbin Institute of Technology at Weihai, Weihai 264209, China

Received Date: 2006-08-14

Accepted Date: 2006-11-28

Available Online: 2007-12-25

Abstract: In order to get shorter pulse width to improve time resolution,femtosecond pulse was compressed by using two prisms and a reflective mirror.Femtosecond pulse was measured with a home-made second-harmonic generation frequency-resolved optical gating.The temporal width of input pulse was 89fs,the time-bandwidth product was 0.9096,the minimum error was 2.4‰ and the average power of the input light was about 480mW.The width of compressed pulse was 22fs,the time-bandwidth product was 0.44203,the minimum error was 1.1‰ and the average power of the output light was about 250mW.The compression ratio was 4:1,which was higher than that in the related report.The experimental results indicate that the compressing device is valid and the result is useful for getting shorter pulses.

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Reference (16)

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Femtosecond pulse compression in external cavity

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