Programmable chirp compensation for 6-fs pulse generation with a prism-pair-formed pulse shaper
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概要
- 論文の詳細を見る
We describe a TF5 prism-pair-formed pulse shaper for programmable pulse chirp compensation. The advantages of this kind of pulse shaper are: 1) very broad bandwidth of transmission; 2) smaller losses; and 3) no requirement for a large-size spatial light modulator (SLM) if the input spectrum is very broad. In our experiment, an ultrabroad spectral (500-1000 nm) pulse is produced by launching 1-kHz, 30-fs, 400-μJ pulses at 780 nm into an argon-filled glass capillary fiber at the gas pressure of 2.0 bar. The fiber has an inner diameter of 140μm and a length of 60 cm. The chirped pulse is first precompressed by a pair of BK7 prisms with a separation length of 65 cm and then directed into the prism-pair-formed pulse-shaping apparatus with a 128-pixel SLM, which provides quadratic and cubic phase compensation. When the quadratic and cubic phases are -- 330 fs2 and +2000 fs3, respectively, at the wavelength of 760 nm, an ultrashort optical pulse of 6 fs (FWHM) is generated. This is, to the best of our knowledge, the shortest optical pulse ever compressed using the SLM pulse-shaping technique.
- IEEE = Institute of Electrical and Electronics Engineersの論文
著者
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重川 秀実
筑波大学物理工学系
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重川 秀実
Univ. Tsukuba Tsukuba
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Shigekawa Hidemi
Institute Of Applied Physics University Of Tsukuba
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Shigekawa Hidemi
Institute Of Applied Physics And Crest Japan Science And Technology Corporation (jst) University Of
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XU Ling
Schering-Plough Ressearch Institute
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Xu L
Schering-plough Ressearch Institute
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