A standalone plug-and-play optical frequency reference device based on frequency modulation spectroscopy of the D2-transition in rubidium at 780 nm is presented. The Bayesian optimizer from JCMsuite is used to demonstrate a short-term frequency stability improvement by varying the modulation parameters.
A. Strangerfeld, et al. Compact plug and play optical frequency reference device based on Doppler-free spectroscopy of rubidium vapor. Opt. Express, 30, 12039-12047, (2022).