A robust laser-frequency-locking scheme to atomic transitions is proposed and demonstrated. In this scheme, dispersion of the Zeeman-shifted atoms instead of absorption in the dichroic atomic vapor laser lock (DAVLL) [Appl. Opt. 37, 3295 (1998)] is measured and used as an error signal for stabilization feedback. The error signal of the proposed scheme can provide a wide locking range. Experimental demonstration with the transition between 5d2D 3/2 and 6p2P1/2of Ba+ is carried out for a grating feedback external-cavity laser diode at 650 nm.
|Number of pages||5|
|Journal||Journal of the Optical Society of America B: Optical Physics|
|Publication status||Published - 2009 Jun 1|
ASJC Scopus subject areas
- Statistical and Nonlinear Physics
- Atomic and Molecular Physics, and Optics