Generation of 7-fs laser pulse and measurement of carrier-envelope phase by difference-frequency generation

Yanying Zhao; Hainian Han; Peng Wang; Wei Zhang; Zhiyi Wei

doi:10.1117/12.725343

29 January 2007 Generation of 7-fs laser pulse and measurement of carrier-envelope phase by difference-frequency generation

Yanying Zhao, Hainian Han, Peng Wang, Wei Zhang, Zhiyi Wei

Author Affiliations +

Proceedings Volume 6279, 27th International Congress on High-Speed Photography and Photonics; 62793Y (2007) https://doi.org/10.1117/12.725343
Event: 27th International congress on High-Speed Photography and Photonics, 2006, Xi'an, China

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.

Citation Download Citation

Yanying Zhao, Hainian Han, Peng Wang, Wei Zhang, and Zhiyi Wei "Generation of 7-fs laser pulse and measurement of carrier-envelope phase by difference-frequency generation", Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62793Y (29 January 2007); https://doi.org/10.1117/12.725343

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