QUASIPHASE-MATCHED SECOND HARMONIC GENERATION OF BLUE LIGHT IN ELECTRICALLY PERIODICALLY-POLED LITHIUM TANTALATE WAVEGUIDES

Blue light was generated at room temperature by quasiphase-matched second harmonic generation in planar and channel lithium tantalate (LiTaO3) annealed proton exchange waveguides using the d33 nonlinear coefficient. Alternating ferroelectric domains for third order quasiphase matching were created by poling the substrates with a periodic electric field.

[1]  N. Bloembergen,et al.  Interactions between light waves in a nonlinear dielectric , 1962 .

[2]  Robert A. Norwood,et al.  Phase‐matched second‐harmonic generation in a polymer waveguide , 1989 .

[3]  Optical Index Damage In Electrooptic Crystals , 1974 .

[4]  F. Duan,et al.  Study of LiTa03 crystals grown with a modulated structure I. Second harmonic generation in LiTa03 crystals with periodic laminar ferroelectric domains , 1986 .

[5]  F. Laurell,et al.  Blue light generated by frequency doubling of laser diode light in a lithium niobate channel waveguide , 1989, IEEE Photonics Technology Letters.

[6]  G. Stegeman,et al.  Nonlinear integrated optics , 1985 .

[7]  W. Bond.  Measurement of the Refractive Indices of Several Crystals , 1965 .

[8]  A. Loni,et al.  Measurement of the increase in the shg coefficient of proton exchanged LiNbO3 after annealing using a grating diffraction technique , 1990 .

[9]  High-quality LiTaO(3) integrated-optical waveguides and devices fabricated by the annealed-proton-exchange technique. , 1988, Optics letters.

[10]  Toshiaki Suhara,et al.  Measurement of reduction in SHG coefficient of LiNbO/sub 3/ by proton exchanging , 1989 .

[11]  H. Ahlfeldt,et al.  Periodic domain inversion and generation of blue light in lithium tantalate waveguides , 1991, IEEE Photonics Technology Letters.

[12]  R. Srivastava,et al.  Recovery of second-order optical nonlinearity in annealed proton-exchanged LiNbO/sub x/ , 1991, IEEE Photonics Technology Letters.

[13]  Tetsuo Taniuchi,et al.  Second‐harmonic generation of blue light in a LiTaO3 waveguide , 1991 .