Abstract

We developed an apodized multiple quasi-phase-matched (QPM) LiNbO3 device to reduce the cross talk that occurs during waveband conversion. Since we found that the cross talk arises from ripples between multiple QPM peaks in the phase-matching curve, we reduced the amplitude of the ripples by employing the apodized structure. Using this device, we succeeded in demonstrating waveband conversion with low cross talk.

© 2010 Optical Society of America

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