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Proceedings Paper

Generation of 7-fs laser pulse and measurement of carrier-envelope phase by difference-frequency generation
Author(s): Yanying Zhao; Hainian Han; Peng Wang; Wei Zhang; Zhiyi Wei
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Paper Abstract

An ultrabroaden spectrum covered from 600nm to 1000nm was directly generated from a self-designed femtosecond laser. The laser resonator consists in only three or four chirped mirrors and one output coupler, we measured the pulse duration is shorter than 7fs by compensating the dispersion outside the laser cavity, repetition rate of high as 160MHz was realized. As our best knowledge, this is the simplest laser configuration of generating the pulse of shorter than 10fs. To control the carrier-enveloped phase (CEP), we further used a PPLN crystal to generate the difference-frequency based on the ultrabroaden spectrum, a beat frequency with signal to noise ratio of 34dB was observed. Locking the beat frequency and the 160MHz repetiton rate to a Cs clock, it will enable us to realize a compact frequency comb with high repetition rate.

Paper Details

Date Published: 29 January 2007
PDF: 7 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62793Y (29 January 2007); doi: 10.1117/12.725343
Show Author Affiliations
Yanying Zhao, Institute of Physics (China)
Hainian Han, Institute of Physics (China)
Peng Wang, Institute of Physics (China)
Wei Zhang, Institute of Physics (China)
Zhiyi Wei, Institute of Physics (China)

Published in SPIE Proceedings Vol. 6279:
27th International Congress on High-Speed Photography and Photonics
Xun Hou; Wei Zhao; Baoli Yao, Editor(s)

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