Planar waveguides were fabricated by diffusing Zn into MgO:LiNbO3 and LiNbO3. Zn-diffused waveguides in MgO:LiNbO3 guide both the ordinary and extraordinary polarization and have propagation losses at 633 nm in the range of 0.4–1.2 dB/cm. Single-beam-induced in-plane scattering due to photorefractive damage was not observed at 515 nm up to intensities of as much as 90 kW/cm2.
© 1991 Optical Society of America
Original Manuscript: February 4, 1991
Published: July 1, 1991
W. M. Young, M. M. Fejer, M. J. F. Digonnet, R. S. Feigelson, and H. J. Shaw, "Photorefractive-damage-resistant Zn-diffused waveguides in MgO:LiNbO3," Opt. Lett. 16, 995-997 (1991)