Abstract
Quasi-phase-matched(QPM) technique is very attractive for realizing frequency conversion devices, because it is easy to realize frequency conversion with high efficiency and to obtain a collimating beam. Therefore, many QPM studies have been undertaken mainly using LiNbO3 waveguides.[1-3] On the other hand, nonlinear organic materials have received considerable attention due to their large nonlinear coefficient. However, there have been few reports on quasi-phase-matched frequency conversion using these materials[4,5] because they are difficult to fabricate into waveguides with a precise periodic poling structure.
© 1995 Optical Society of America
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