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Recent advances in sub-µm PPKTP for non-linear interactions with counter-propagating photons
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Paper Abstract

Mirrorless optical parametric oscillators (MOPO) represent a special class of parametric devices based on three-wave nonlinear interaction in which the generated photons counter-propagate. Owing to the phase-matching condition of the counter-propagating waves, MOPOs can sustain oscillation without mirrors and present unique and useful tuning and spectral properties. In this paper, we will review our recent advances in structuring technology to achieve quasi-phase matching periodicities as short as 500 nm in Rb-doped KTiOPO4, which are necessary to compensate for the large phase mismatch. We will also review the performance of MOPOs both in the ps- and ns- pumping regime. In the latter, our crystals reach single-pass conversion efficiencies exceeding 50%, with mJ-level output energies.

Paper Details

Date Published: 4 March 2019
PDF: 9 pages
Proc. SPIE 10902, Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII, 109020G (4 March 2019); doi: 10.1117/12.2514724
Show Author Affiliations
Andrius Zukauskas, KTH Royal Institute of Technology (Sweden)
Anne-Lise Viotti, KTH Royal Institute of Technology (Sweden)
Riaan Coetzee, KTH Royal Institute of Technology (Sweden)
Charlotte Liljestrand, KTH Royal Instiute of Technology (Sweden)
Valdas Pasiskevicius, KTH Royal Institute of Technology (Sweden)
Carlota Canalias, KTH Royal Instiute of Technology (Sweden)


Published in SPIE Proceedings Vol. 10902:
Nonlinear Frequency Generation and Conversion: Materials and Devices XVIII
Peter G. Schunemann; Kenneth L. Schepler, Editor(s)

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