Add to BibSonomy
Abstract
We report on high average power, low threshold supercontinuum generation in a homogeneous bulk material at 76 MHz pulse repetition rate with amplified as well as unamplified pulses from a Yb:KGW oscillator. An octave-spanning supercontinuum was produced in undoped potassium gadolinium tungstate (KGW), which demonstrated robust, damage-free long-term performance with a total average pump power of 6.4 W. The supercontinuum generation was unambiguously attested by the distinctive features of the phenomenon: beam filamentation visualized via filament-induced luminescence; conical emission and its characteristic angular distribution captured by angle-resolved spectral measurements; and pulse splitting that produced the sub-pulses with well-behaved phases, as retrieved from the measurements employing a second harmonic frequency-resolved optical gating technique.
© 2023 Optica Publishing Group
Full Article | PDF ArticleMore Like This
Robertas Grigutis, Vytautas Jukna, Gintaras Tamošauskas, and Audrius Dubietis
Opt. Lett. 48(2) 506-509 (2023)
A. Marcinkevičiūtė, V. Jukna, R. Šuminas, N. Garejev, G. Tamošauskas, and A. Dubietis
Opt. Lett. 44(6) 1343-1346 (2019)
Vaida Marčiulionytė, Kawthar Reggui, Gintaras Tamošauskas, and Audrius Dubietis
Opt. Express 31(12) 20377-20386 (2023)