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
Original Manuscript: June 9, 1993
Published: October 15, 1993
A. Arie, M. L. Bortz, M. M. Fejer, and R. L. Byer, "Iodine spectroscopy and absolute frequency stabilization with the second harmonic of the 1319-nm Nd:YAG laser," Opt. Lett. 18, 1757-1759 (1993)