EPJ Web Conf.
Volume 255, 2021EOS Annual Meeting (EOSAM 2021)
|Number of page(s)||3|
|Section||Topical Meeting (TOM) 8- Nonlinear and Quantum Optics|
|Published online||18 November 2021|
Efficient watt-level 0.775 μm SHG and 3.3 μm DFG in annealed and reverse proton exchanged diced PPLN ridge waveguides
Faculty of Electrical Engineering, Helmut Schmidt University, 22043 Hamburg, Germany
* Corresponding author: firstname.lastname@example.org
Published online: 18 November 2021
We report on the fabrication of ridge waveguides formed in congruent periodically poled lithium niobate (PPLN). The waveguides were fabricated by periodic poling, proton exchange, subsequent annealing and reverse proton exchange followed by diamond blade dicing. Up to 1 W of single-pass second-harmonic generation at 775 nm has been realized in 50 mm long ridge waveguides with internal conversion efficiency of 70%. Furthermore, difference frequency generation at 3.3 μm of two pump waves at 1.05 μm and 1.55 μm has been obtained in similarly fabricated PPLN ridge waveguides with an appropriate poling period.
© The Authors, published by EDP Sciences, 2021
This is an Open Access article distributed under the terms of the Creative Commons Attribution License 4.0, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
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