TE-pass integrated optical polarizers have been fabricated in X-cut LiNbO3 by using titanium indiffusion in conjunction with proton exchange. The polarizers, which are designed to operate at λ = 0.8–0.85 µm, exhibit an excess insertion loss of 0.2 dB and a measurement-limited polarization-extinction ratio of >50 dB. These values represent a significant improvement over previously published results.
© 1988 Optical Society of America
P. G. Suchoski, T. K. Findakly, and F. J. Leonberger, "Low-loss high-extinction polarizers fabricated in LiNbO3 by proton exchange," Opt. Lett. 13, 172-174 (1988)