T. Kishino et al., 70+mu m deep domain inversion in X-cut LiNbO3 and its use in a high-speed bandpass integrated-optic modulator, APPL PHYS L, 76(26), 2000, pp. 3852-3854
A deep domain inversion (DI) technique for X-cut LiNbO3 is reported. DI reg
ions as deep as 70 mu m, i.e., deep enough for virtually any guided-wave ap
plication, were obtained by electric-field poling, with even deeper DI regi
ons possible. As an application of the DI technique, a bandpass traveling-w
ave Mach-Zehnder modulator is demonstrated with a 15 GHz bandwidth centered
at 21 GHz. (C) 2000 American Institute of Physics. [S0003-6951(00)03726-8]
.