Laser frequency locking by direct measurement of detuning

Ratnapala, A., Vale, C. J., White, A. G., Harvey, M. D., Heckenberg, N. R. and Rubinsztein-Dunlop, H. (2004) Laser frequency locking by direct measurement of detuning. Optics Letters, 29 23: 2704-2706. doi:10.1364/OL.29.002704


Author Ratnapala, A.
Vale, C. J.
White, A. G.
Harvey, M. D.
Heckenberg, N. R.
Rubinsztein-Dunlop, H.
Title Laser frequency locking by direct measurement of detuning
Journal name Optics Letters   Check publisher's open access policy
ISSN 0146-9592
Publication date 2004-01-01
Sub-type Article (original research)
DOI 10.1364/OL.29.002704
Volume 29
Issue 23
Start page 2704
End page 2706
Total pages 3
Editor Anthony J. Campillo
Anthony M. Johnson
Barbara Williams
Place of publication Washington
Publisher Optical Society of America
Language eng
Subject C1
240402 Quantum Optics and Lasers
780102 Physical sciences
Abstract We present a new method of laser frequency locking in which the feedback signal is directly proportional to the detuning from an atomic transition, even at detunings many times the natural linewidth of the transition. Our method is a form of sub-Doppler polarization spectroscopy, based on measuring two Stokes parameters (I-2 and I-3) of light transmitted through a vapor cell. It extends the linear capture range of the lock loop by as much as an order of magnitude and provides frequency discrimination equivalent to or better than those of other commonly used locking techniques. (C) 2004 Optical Society of America
Keyword Atom Optics
Laser Optics
Diode-laser
Stabilization
Cavity
Optics
Polarization Spectroscopy
Q-Index Code C1

 
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Created: Wed, 15 Aug 2007, 14:22:33 EST