, Volume 70, Issue 3, pp 375-378

A femtosecond self-mode-locked Ti:sapphire laser with high stability of pulse-repetition frequency and its applications

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The spectral characteristics and stability of a frequency of intermode beats of a fs self-mode-locked Ti:sapphire laser are investigated. An active method is used to obtain high stability. The frequency stability of intermode beats not lower than 1.27×10−12 rms in 50 s is achieved. Possible applications of the setup, such as measurement of large frequency intervals in the optical range, creation of optical frequency synthesizers, etc., are proposed. The physical principles for the creation of an optical clock of a new type using a highly stable fs Ti:sapphire laser are considered.

Received: 7 May 1999 / Published online: 27 October 1999