Time-domain stabilization of carrier-envelope phase in femtosecond light pulses

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We report a time-domain method of stabilizing the carrier-envelope phase (CEP) of femtosecond pulses. Temporal variations of the pulse envelope and the carrier electric-field phase were separately detected with the aid of intensity cross-correlation and interferometric cross-correlation. These detected signals were used to stabilize the CEP; the resulting 50-fold improvement in the fractional stability of the carrier-envelop-offset frequency was evaluated as 1.2 x 10(-11) at 0.1 second averaging periods and 1.7 x 10(-9) at 80 seconds, corresponding to a carrier envelope phase noise of 75 microradians and 10 milliradians, respectively. This method can be realized with a low pulse energy of similar to 10 pJ and does not require subsequent power amplification or spectral broadening. The high efficiency and short-term stability of this method can facilitate the use of femtosecond lasers in the field of industrial surface measurements, telecommunications, and space sciences.
Publisher
OPTICAL SOC AMER
Issue Date
2014-05
Language
English
Article Type
Article
Citation

OPTICS EXPRESS, v.22, no.10, pp.11788 - 11796

ISSN
1094-4087
DOI
10.1364/OE.22.011788
URI
http://hdl.handle.net/10203/193051
Appears in Collection
ME-Journal Papers(저널논문)
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