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Tailored second harmonic generation in Ti-diffused PPLN waveguides using micro-heaters
DOI:10.1364/OE.510319.png)
Abstract
En 中文
Frequency conversion based on chi(2) nonlinear optical interactions can be made very efficient in waveguide structures. Fabrication imperfections remain very often a limiting factor. They can induce strong distortions in the spectral shape and lower the efficiency. To overcome these imperfections a post-trimming method based on a cascade of ten micro-heaters on top of the waveguide along the interaction length is demonstrated. As an example, the second harmonic generation in a Ti-indiffused waveguide in periodically poled LiNbO3 is investigated. A tailoring of the spectral characteristics of the phase-matching curves could be successfully demonstrated.
Keywords:
PHASE
IMPERFECTIONS
EFFICIENT

