We report difference frequency generation–based wavelength converters with multiple phase-matching wavelengths that use engineered quasi-phase-matching structures in LiNbO<sub>3</sub> waveguides. Multiple-channel wavelength conversion is demonstrated within the 1.5-μm band and between the 1.3- and 1.5-μm bands. With simultaneous use of <i>M</i> pump wavelengths, these devices can also be used to perform wavelength broadcasting, in which each of <i>N</i> input signals is converted into <i>M</i> output wavelengths.
© 1999 Optical Society of America
(060.2330) Fiber optics and optical communications : Fiber optics communications
(190.2620) Nonlinear optics : Harmonic generation and mixing
(190.4360) Nonlinear optics : Nonlinear optics, devices
M. H. Chou, K. R. Parameswaran, M. M. Fejer, and I. Brener, "Multiple-channel wavelength conversion by use of engineered quasi-phase-matching structures in LiNbO3 waveguides," Opt. Lett. 24, 1157-1159 (1999)