Iodine spectroscopy and absolute frequency stabilization with the second harmonic of the 1319-nm Nd:YAG laser

Abstract

We have frequency doubled a 1319-nm Nd:YAG laser in a quasi-phase-matched LiNbO₃ waveguide and used the ≈1-mW second-harmonic output to investigate the ¹²⁷I₂ transitions near 660 nm. We reached submegahertz laser-frequency stability at a (vacuum) wavelength of 1319.098 nm by locking the second harmonic to the center of the P(48)6–6 transition.

© 1993 Optical Society of America

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