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Proceedings Paper

Stabilization and phase control of femtosecond Ti:sapphire laser with a repetition rate of 90MHz
Author(s): Wei Zhang; Hainian Han; Peng Wang; Zhiyi Wei
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Paper Abstract

Carrier-enveloped phase controlled femtosecond laser has an important application in the absolute frequency measurement, which lead to a revolutionary progress in the frequency metrology. In this paper we will report a high stable optical frequency comb based on a 90MHz repetition rate Ti:sapphire laser, by using a photonic crystal fiber to broaden octave spanning spectrum and a self-reference technology to measure the offset frequency fceo, both the repetition rate frep and fceo are locked simultaneously to a cesium clock with phase lock loop (PLL) technology. For simultaneous stabilization of frep and fceo, two sets of phase-locked loop electronics are introduced to control separately the laser cavity length for frep with a PZT and the pump laser for fceo with an acoustic optics modulation (AOM) respectively. As the result, we stabilized the frep at a fluctuation within the order of μHz, and fceo is in the order of mHz, which support a frequency comb with an uncertainty of 10-14.

Paper Details

Date Published: 29 January 2007
PDF: 8 pages
Proc. SPIE 6279, 27th International Congress on High-Speed Photography and Photonics, 62793X (29 January 2007); doi: 10.1117/12.725341
Show Author Affiliations
Wei Zhang, Institute of Physics (China)
Hainian Han, Institute of Physics (China)
Peng Wang, 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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