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Proceedings Paper

Time-domain aspect of carrier-envelope-phase control: field stabilized optical pulse generation
Author(s): Kenji Torizuka; Hideyuki Takada; Masayuki Kakehata
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Paper Abstract

An ultrashort pulse laser system with precisely controlled output-timing and carrier-envelope phase (CEP) is reported. Recently developed technology Ofl CEP control of a mode-locked laser not only introduced an optical frequency comh in frequency domain hut also gave us a way to generate optical pulses whose oscillating electric field is under a fixed phase relation with the intensity shape. Fortunately, recent advances on optical physics have also showed that sonic types of light-matter interactions become sensitive to the field shape when the pulse approaches a few cycles in duration and has a high peak intensity. Owing to those advances, field-controlled ultrashort pulse generation, based on suh-femtosecond resolution timing-control and sub-radian CEP control of femtosecond lasers, becomes an attractive challenge. Our final goal is to realize a shaped electric field within optical-cycle time scale br researches on light-matter interaction and other future application. CEP control Ofl a mode-locked Ti:sapphire laser is the first step of such a laser system. Trade-off between the accuracy and robustness of the control, and the monitoring technique of CEP br amplilication, will he discussed. Amplification of a CEP-controlled pulse, which is necessary for most of time-domain application, is successfully performed by the CEP monitoring technique. Our chirped-pulse amplifier, that includes a grating-based stretcher/compressor, has a potential to achieve higher-energy amplification of a fixed CEP pulse. Multichannel phase control of spectrally divided ultrashort pulses is applied to dynamic control of pulse-timing and CEP of amplifled pulses. Related results on short-pulse, sub-l3fs, generation by a chirped-pulse Ti:sapphire amplifier, and multicolor phase-coherent pulse sources will be also discussed briefly, showing our on-going efforts to approach the final goal.

Paper Details

Date Published: 10 June 2006
PDF: 5 pages
Proc. SPIE 6344, Advanced Laser Technologies 2005, 634401 (10 June 2006); doi: 10.1117/12.693387
Show Author Affiliations
Kenji Torizuka, National Institute of Advanced Industrial Science and Technology (Japan)
Hideyuki Takada, National Institute of Advanced Industrial Science and Technology (Japan)
Masayuki Kakehata, National Institute of Advanced Industrial Science and Technology (Japan)

Published in SPIE Proceedings Vol. 6344:
Advanced Laser Technologies 2005
Ivan A. Shcherbakov; Kexin Xu; Qingyue Wang; Alexander V. Priezzhev; Vladimir I. Pustovoy, Editor(s)

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