[1] J. L. Jackel, C. E. Rice, J. J. Veselka. Proton-exchanged for high-index waveguides in LiNbO3. Appl. Phys. Lett., 1982, 41(7): 607~608
[2] Toshiya Yuhara, Kunio Tada, Yusha Li. Anomalous refractive index change and recovery of electro-optic cofficient r33 in proton-exchanged LiTaO3 optical waveguides after annealing. J. Appl. Phys., 1991, 71(8): 3966~3974
[3] C. Canall, A. Camera, G. DellaMea et al.. Structural characterization of proton exchanged LiNbO3 optical waveguides. J. Appl. Phys., 1986, 59(8): 2643~2649
[4] Paul J. Matthews, Alan R. Mickelson, Steven W. Novak. Properites of proton exchange waveguides in lithium tantalate. J. Appl. Phys., 1992, 72(7): 2562~2563
[5] M. Digoneet, M. Fejer, R. Byer. Characterization of proton-exchanged waveguides in MgO:LiNbO3. Opt. Lett., 1985, 10(5): 235~237
[7] Kazuhisa Yamamoto, Hiroaki Yamamoto, T. Taniuchi et al.. Simultaneous sum-frequency and second-harmonic generation from a proton-exchanged MgO-doped LiNbO3 waveguide. Appl. Phys. Lett., 1991, 58(12): 1277~1299
[8] A. Loni, G. Hay, R. M. De La Rue et al.. Proton-exchanged LiNbO3 waveguides: The effect of post-exchanged annealling and buffered melts as determined by infrared spectroscopy, optical waveguide measurements, and hydrogen isotopic exchange reactions. J. Lightwave Technol., 1989, 7(6): 911~919
[9] Edwin Y. B. Pun. Recent development of proton-exchanged waveguides and devices in lithium niobate using phosphoric acid. Proc. SPIE, 1990, 1374: 2~13
[10] W. Bollmann. Diffusion of hydrogen (OH--ions) in LiNbO3 crystals. Phys. Stat. Sol., 1987, 104(8): 643~647
[11] K. K. Wong. An experimental study of dilute-melt proton-exchanged waveguides in x-cut and z-cut lithium niobate. GEC J. Res., 1985, 3(4): 243~250