CO LASER FREQUENCY STABILITY DETERMINED BY A LASER MAGNETIC-RESONANCEMETHOD

A method of CO laser frequency stability measurement is proposed, base d on the molecular laser magnetic resonance (LMR) spectrum, which can be used to measure the linewidths of molecular LMR spectra and their c hanges. The data were treated by the Allan variance method. A series o f CO laser frequency stability measurements were obtained from 0.1 s t o 1000 a in the time domain. The frequency stability was fitted to a p ower law function. The expressions of frequency stability were found f or a stabilized and a free-running CO laser in the frequency domain.