Multiple-channel wavelength conversion by use of engineered quasi-phase-matching structures in LiNbO₃ waveguides

Abstract

We report difference frequency generation–based wavelength converters with multiple phase-matching wavelengths that use engineered quasi-phase-matching structures in ${\mathrm{LiNbO}}_3$ waveguides. Multiple-channel wavelength conversion is demonstrated within the $1.5‐\mathit{\mu }\mathrm{m}$ band and between the 1.3- and $1.5‐\mathit{\mu }\mathrm{m}$ bands. With simultaneous use of $M$ pump wavelengths, these devices can also be used to perform wavelength broadcasting, in which each of $N$ input signals is converted into $M$ output wavelengths.

© 1999 Optical Society of America

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