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  4. Frequency comb generation in non-centrosymmetric optical microresonators
 
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2020
Conference Paper
Titel

Frequency comb generation in non-centrosymmetric optical microresonators

Abstract
Optical frequency combs are a key technology for precision measurements. In the past years, microresonatorbased frequency combs based on third-order CH (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 CH (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.
Author(s)
Szabados, Jan
Univ. Freiburg/Brsg.
Breunig, Ingo
Fraunhofer-Institut für Physikalische Messtechnik IPM
Buse, Karsten
Fraunhofer-Institut für Physikalische Messtechnik IPM
Hauptwerk
Laser Resonators, Microresonators, and Beam Control XXII
Konferenz
Conference "Laser Resonators, Microresonators, and Beam Control" 2020
DOI
10.1117/12.2544657
File(s)
N-578769.pdf (2.26 MB)
Language
English
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Fraunhofer-Institut für Physikalische Messtechnik IPM
Tags
  • Frequency Combs

  • Microresonator

  • nonlinear optics

  • whispering gallery resonators

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