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Pulse compression of white-light continuum generated by induced phase modulation in a conventional glass fiber

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Title: Pulse compression of white-light continuum generated by induced phase modulation in a conventional glass fiber
Authors: Yamashita, Mikio Browse this author →KAKEN DB
Hirasawa, Masakatsu Browse this author
Nakagawa, Naoya Browse this author
Yamamoto, Kazuki Browse this author
Oka, Kazuhiko Browse this author →KAKEN DB
Morita, Ryuji Browse this author →KAKEN DB
Suguro, Akira Browse this author
Issue Date: 1-Feb-2004
Publisher: Optical Society of America
Journal Title: Journal of the Optical Society of America B : Optical Physics
Volume: 21
Issue: 2
Start Page: 458
End Page: 462
Publisher DOI: 10.1364/JOSAB.21.000458
Abstract: The 530-880-nm continuum pulse with a greatly asymmetric temporal profile over 500 fs and a spectral phase variation over 150 rad, which was generated by induced phase modulation (IPM) as well as self-phase modulation in a conventional fused-silica fiber, was compressed to 7.8 fs by a feedback technique. Fundamental (a center wavelength of 800 nm, a duration of 80 fs, a pulse energy of 64 nJ) and signal pulses (a center wave-length of 670 nm, a duration of 80 fs, a pulse energy of 65 nJ) produced by one common femtosecond source with an optical parametric amplifier were copropagated in the fiber under an optimum delay time between the two pulses. The computer-controlled feedback system that combines a 4-f phase compensator with a spatial light modulator and a modified spectral phase interferometry for a direct electric-field reconstruction, automatically compensated for not only the conventional nonlinear chirp (group-delay dispersion and its higher-order dispersion) but also the frequency-independent group-delay (first-order phase dispersion), both of which are essential for pulse compression by use of the IPM effect.
Rights: © 2004 Optical Society of America
Type: article
URI: http://hdl.handle.net/2115/45347
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 山下 幹雄

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