Lasers and Laser Optics

Frequency stabilization of a mode-locked external cavity diode laser to a high-finesse cavity

[+] Author Affiliations
Yihan Xiong

Montana State University, Physics Department, EPS 264, Bozeman, Montana 59717

Sytil Murphy

Montana State University, Physics Department, EPS 264, Bozeman, Montana 59717

J. L. Carlsten

Montana State University, Physics Department, EPS 264, Bozeman, Montana 59717

Kevin S. Repasky

Montana State University, ECE Department, Cobleigh 610, Bozeman, Montana 59717

Opt. Eng. 46(5), 054203 (May 10, 2007). doi:10.1117/1.2738982
History: Received August 31, 2006; Revised November 15, 2006; Accepted November 28, 2006; Published May 10, 2007
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Abstract

A 17.84-cm-long Littrow external cavity diode laser at 823nm is mode-locked by actively modulating the current at a 840.843-MHz fundamental harmonic frequency. This mode-locked external cavity diode laser has an overall spectral width of 0.16nm (or 71GHz), roughly corresponding to 84 longitudinal modes, a temporal pulse width of 63ps, and an average power of 1mW. Using the Pound-Drever-Hall technique with both fast and slow servo corrections, this mode-locked laser is then frequency-stabilized to a 17.84-cm-long sealed optical cavity with a finesse of 6000. To the author’s knowledge, this is the first frequency stabilization of a mode-locked diode laser with such a high-finesse cavity.

Figures in this Article
© 2007 Society of Photo-Optical Instrumentation Engineers

Citation

Yihan Xiong ; Sytil Murphy ; J. L. Carlsten and Kevin S. Repasky
"Frequency stabilization of a mode-locked external cavity diode laser to a high-finesse cavity", Opt. Eng. 46(5), 054203 (May 10, 2007). ; http://dx.doi.org/10.1117/1.2738982


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