Open AccessModulation-free sub-Doppler laser frequency stabilization to molecular iodine with a common-path, two-color interferometer
Author(s) -
Peer Burdack,
Michael Tröbs,
M. Hunnekuhl,
Carsten Fallnich,
I. Freitag
Publication year - 2004
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/opex.12.000644
Subject(s) - optics , interferometry , modulation (music) , doppler effect , frequency modulation , laser , allan variance , optical path length , dispersion (optics) , optical path , materials science , physics , telecommunications , computer science , radio frequency , mathematics , statistics , astronomy , standard deviation , acoustics
Recently, a simple common-path, two-color interferometer has been used for Doppler-free saturated dispersion spectroscopy of iodine. We have used such a set-up to stabilize a Nd:YAG laser for the first time, to our knowledge. This method requires only a small number of low-cost optical components compared to frequency modulation techniques.We have measured a root Allan variance of 5 . 10(-12) for 0.2 s, and below 5 . 10 (-11) for integration times up to 300 s.