1.5-µm-band wavelength conversion based on difference-frequency generation in LiNbO₃ waveguides with integrated coupling structures

Abstract

We report wavelength conversion within the $1.5‐\mathit{\mu }\mathrm{m}$ telecommunications band based on difference-frequency generation in periodically poled lithium niobate waveguides with integrated coupling structures. A conversion efficiency of $-7 \mathrm{dB}$ and a normalized efficiency of $260\%/\mathrm{W}$ are demonstrated. Static tests show that the conversion bandwidth is 72 nm and the conversion efficiency is constant over the 20-dB range of input powers tested.

© 1998 Optical Society of America

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