Pump-probe differencing technique for cavity-enhanced, noise-canceling saturation laser spectroscopy
Optics
2009-11-10 v1
Abstract
We present an experimental technique enabling mechanical-noise free, cavity-enhanced frequency measurements of an atomic transition and its hyperfine structure. We employ the 532nm frequency doubled output from a Nd:YAG laser and an iodine vapour cell. The cell is placed in a traveling-wave Fabry-Perot interferometer (FPI) with counter-propagating pump and probe beams. The FPI is locked using the Pound-Drever-Hall (PDH) technique. Mechanical noise is rejected by differencing pump and probe signals. In addition, this differenced error signal gives a sensitive measure of differential non-linearity within the FPI.
Cite
@article{arxiv.physics/0411107,
title = {Pump-probe differencing technique for cavity-enhanced, noise-canceling saturation laser spectroscopy},
author = {Glenn de Vine and David E. McClelland and John D. Close and Malcolm B. Gray},
journal= {arXiv preprint arXiv:physics/0411107},
year = {2009}
}
Comments
3 pages, 5 figures, submitted to Optics Letters