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Fast scanning cavity offset lock for laser frequency drift stabilization

journal contribution
posted on 2023-06-08, 07:42 authored by Nicolas Seymour-Smith, Peter Blythe, Matthias KellerMatthias Keller, Wolfgang Lange
We have implemented a compact setup for long-term laser frequency stabilization. Light from a stable reference laser and several slave lasers is coupled into a confocal FabryProt resonator. By stabilizing the position of the transmission peaks of the slave lasers relative to successive peaks of the master laser as the length of the cavity is scanned over one free spectral range, the long-term stability of the master laser is transferred to the slave lasers. By using fast analog peak detection and low-latency microcontroller-based digital feedback, with a scanning frequency of 3 kHz, we obtain a feedback bandwidth of 380 Hz and a relative stability of better than 10 kHz at timescales longer than 1 s, a significant improvement on previous scanning-cavity stabilization systems.

History

Publication status

  • Published

Journal

Review of Scientific Instruments

ISSN

0034-6748

Publisher

American Institute of Physics

Issue

7

Volume

81

Page range

075109-1-075109-5

Department affiliated with

  • Physics and Astronomy Publications

Full text available

  • No

Peer reviewed?

  • Yes

Legacy Posted Date

2012-02-06

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