Abstract
We report a numerical simulation and an experimental study on the
interaction-length dependence of frequency stability in an
iodine-stabilized neodymium-doped yttrium aluminum garnet (Nd:YAG)
laser. A saturation spectroscopy model was used in the simulation to
calculate the interaction-length dependence of the linewidth and
signal-to-noise ratio of the iodine saturation spectrum. We determined
that 2 m was the optimal interaction length for laser-frequency
stabilization. We confirmed the simulation results by performing
modulation transfer spectroscopy and laser-frequency stabilization
using 45-cm- and 2-m-long iodine cells and multipass configurations.
The results of this study are useful for designing compact and highly
stable iodine-stabilized lasers.
Funder
Moonshot Research and Development
Program
Japan Society for the Promotion of
Science