Reflect-Type, Highpower-Laser Pulse Shaping System and its Operation Verified by Frequency Resolved Optical Gating

We demonstrated reflect-type pulse shaping of high-power femtosecond pulses from a Ti: sapphire regenerativeamplification system that generates 4.0-μJ pulses of less than 70-fs pulsewidth at a 250-kHz repetition ratewith an average power of 1.0W. The PAL-SLM (Parallel Aligned nematic Liquid crystal...

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Bibliographic Details
Published inRēzā kenkyū Vol. 28; no. 8; pp. 511 - 515
Main Authors ITOH, Haruyasu, URAKAMI, Tsuneyuki, YOSHIDA, Narihiro, IGASAKI, Yasunori, HOSODA, Makoto
Format Journal Article
LanguageEnglish
Published Suita The Laser Society of Japan 2000
Laser Society of Japan
Subjects
Femtosecond pulses
Frequency resolved optical gating
Pulse shaping
Spatial light modulator
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Summary:We demonstrated reflect-type pulse shaping of high-power femtosecond pulses from a Ti: sapphire regenerativeamplification system that generates 4.0-μJ pulses of less than 70-fs pulsewidth at a 250-kHz repetition ratewith an average power of 1.0W. The PAL-SLM (Parallel Aligned nematic Liquid crystal Spatial Light Modulator) contained in our pulse shaping apparatus was evaluated and was able to modulate high peak powerpulses up to 2.4×107W. As a result, the pulse shaping system was used to generate high-power double pulses, as was confirmed by FROG (Frequency Resolved Optical Gating).
ISSN:0387-0200
1349-6603
DOI:10.2184/lsj.28.511