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Proceedings Paper

Frequency comb generation in non-centrosymmetric optical microresonators
Author(s): Jan Szabados; Ingo Breunig; Karsten Buse
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Paper Abstract

Optical frequency combs are a key technology for precision measurements. In the past years, microresonatorbased frequency combs based on third-order χ (3) (Kerr) nonlinearities have attracted significant attention thanks to their small footprint and their wide-ranging applications in fields such as telecommunications, molecular spectroscopy or ultrafast distance measurements. In this contribution, we present a frequency comb generated in a microresonator made of 5% MgO-doped congruent lithium niobate, a non-centrosymmetric crystalline material, employing the generally much stronger second-order χ (2)-nonlinearities of such a material via a scheme of cascaded nonlinear processes. This approach paves the way towards reduced pump thresholds for comb generation and comes with intrinsic suitability for self-referencing.

Paper Details

Date Published: 2 March 2020
PDF: 6 pages
Proc. SPIE 11266, Laser Resonators, Microresonators, and Beam Control XXII, 112660G (2 March 2020); doi: 10.1117/12.2544657
Show Author Affiliations
Jan Szabados, Univ. of Freiburg (Germany)
Ingo Breunig, Univ. of Freiburg (Germany)
Fraunhofer-Institut für Physikalische Messtechnik IPM (Germany)
Karsten Buse, Univ. of Freiburg (Germany)
Fraunhofer-Institut für Physikalische Messtechnik IPM (Germany)


Published in SPIE Proceedings Vol. 11266:
Laser Resonators, Microresonators, and Beam Control XXII
Alexis V. Kudryashov; Alan H. Paxton; Vladimir S. Ilchenko; Andrea M. Armani, Editor(s)

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