High repetition rate supercontinuum generation in undoped KGW and YVO4 crystals

Vaida Marčiulionytė; Jonas Banys; Julius Vengelis; Robertas Grigutis; Gintaras Tamošauskas; Audrius Dubietis

doi:10.1117/12.2676793

5 October 2023 High repetition rate supercontinuum generation in undoped KGW and YVO₄ crystals

Vaida Marčiulionytė, Jonas Banys, Julius Vengelis, Robertas Grigutis, Gintaras Tamošauskas, Audrius Dubietis

Proceedings Volume 12681, Ultrafast Nonlinear Imaging and Spectroscopy XI; 1268103 (2023) https://doi.org/10.1117/12.2676793
Event: SPIE Optical Engineering + Applications, 2023, San Diego, California, United States

Abstract

We present a comparative experimental study of supercontinuum generation in undoped KGW and YVO₄ crystals pumped with near-IR femtosecond laser pulses. We demonstrate that KGW and YVO₄ crystals, compared to commonly used sapphire and YAG, have significantly lower supercontinuum generation thresholds, produce remarkably larger red-shifted spectral broadenings and exhibit durable damage-free long-term operation at 2 MHz and 76 MHz repetition rates. Our results show that KGW and YVO₄ crystals are excellent nonlinear materials for high repetition rate infrared supercontinuum generation which could be used for the design of high average power optical parametric amplifiers as well as for the development of ultrafast ultrafast spectroscopic and high-speed imaging systems.

Conference Presentation

(2023) Published by SPIE. Downloading of the abstract is permitted for personal use only.

Citation Download Citation

Vaida Marčiulionytė, Jonas Banys, Julius Vengelis, Robertas Grigutis, Gintaras Tamošauskas, and Audrius Dubietis "High repetition rate supercontinuum generation in undoped KGW and YVO₄ crystals", Proc. SPIE 12681, Ultrafast Nonlinear Imaging and Spectroscopy XI, 1268103 (5 October 2023); https://doi.org/10.1117/12.2676793

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