[1] Lee Y L, Suche H, Min Y H, Lee J H, Grundkotter W, Quiring V, Sohler W. Wavelength- and time-selective all-optical, channel dropping in periodically poled Ti:LiNbO3 channel waveguides. IEEE Photonics Technology Letters, 2003, 15(7): 978-980

[2] Bortz M L, Fejer M M. Annealed proton-exchanged LiNbO3 waveguides. Optics Letters, 1991, 16(23): 1844-1846

[3] Gawith C B E, Shepherd D P, Abernethy J A, Hanna D C, Ross G W, Smith P G R. Second-harmonic generation in a direct-bonded periodically poled LiNbO3 buried waveguide. Optics Letters, 1999, 24(7): 481-483

[4] Umeki T, Asobe M, Nishida Y, Tadanaga O, Magari K, Yanagawa T, Suzuki H. Highly efficient +5-dB parametric gain conversion using direct-bonded PPZnLN ridge waveguide. IEEE Photonics Technology Letters, 2008, 20(1): 15-17

[5] Umeki T, Tadanaga O, Asobe M. Highly efficient wavelength converter using direct-bonded PPZnLN ridge waveguide. IEEE Journal of Quantum Electronics, 2010, 46(8): 1206-1213

[6] Asobe M, Miyazawa H, Tadanaga O, Nishida Y, Suzuki H. A highly damage-resistant Zn:LiNbO3 ridge waveguide and its application to a polarization-independent wavelength converter. IEEE Journal of Quantum Electronics, 2003, 39(10): 1327-1333

[7] Knox R M, Toulios P P. Integrated circuits for the millimeter through optical frequency range. In: Proceedings of MRI Symposium on Submillimeter Waves. Polytechnic Press, 1970, 497

[8] Zelmon D E, Small D L, Jundt D. Infrared corrected sellmeier coefficients for congruently grown lithium niobate and 5 mol.% magnesium oxide-doped lithium niobate. Optical Society of America B, 1997, 14(12): 3319-3322

[9] Abedin K S, Ito H. Temperature-dependent dispersioon relation of ferroelectric lithium tantalate. Journal of Applied Physics, 1996, 80(11): 6561-6563

[10] Katsunari O. Fundamentals of Optical Waveguides. 2nd ed. Japan: Elsevier, 2005

[11] Kawano K, Kitoh T. Introduction to Optical Waveguide Analysis: Solving Maxwell’s Equations and the Schr dinger Equation. Japan: John Wiley and Sons Inc., 2001

[12] Suhara T, Nishihara H. Theoretical analysis of waveguide secondharmonic generation phase matched with uniform and chirped gratings. IEEE Journal of Quantum Electronics, 1990, 26(7): 1265-1276