Picosecond VIS, UV and deep UV beams generated at 100 kHz diode-pumped Yb:YAG thin disk laser system

0561190 - FZÚ 2023 US eng A - Abstrakt
Turčičová, Hana - Novák, Ondřej - Mužík, Jiří - Štěpánková, Denisa - Smrž, Martin - Mocek, Tomáš
Picosecond VIS, UV and deep UV beams generated at 100 kHz diode-pumped Yb:YAG thin disk laser system.
2021 Conference on Lasers and Electro-Optics Europe & European Quantum Electronics Conference (CLEO/Europe-EQEC). New York: IEEE, 2021, č. článku 9542175. ISBN 978-1-6654-1876-8.
[Conference on Lasers and Electro-Optics Europe and European Quantum Electronics 2021. 21.06.2021-25.06.2021, Mnichov]
Institucionální podpora: RVO:68378271
Klíčová slova: semiconductor lasers * crystals * power system harmonics * harmonic analysis * chemical lasers * laser beams * laser applications
Obor OECD: Optics (including laser optics and quantum optics)

The syst. is Yb:YAG thin-disk based operating at a repetition freq. of 50-100kHz and delivers pulses of 1-2ps.The 2nd harmonic(2H,515 nm) and 3rd harmonic(3H,343 nm) are generated in an LBO(2H) cryst. and an LBO(3H) cryst., respectively.Both cryst. were cascaded with a dual waveplate inbetween them,so that the phase matching in the LBO(3H) could be of TypeI providing a higher effective nonlinear coef. than of TypeII(0.69 pm/V compared to -0.45 pm/V).The 4th harmonic(4H,257.5 nm)is generated as a 2nd harmonic of 515 nm in a CLBO(4H) cryst.The 5th harmonic(5H, 206 nm) is produced in SFG process of 4H+1H in a CLBO(5H) crystal,where the 1H beam is the residual beam after the 2nd harmonic.A good convers. in all the nonlinear processes is conditioned by high quality cryst.,excellent fundamental beam and proper pulse temporal overlap in sum frequency processes.Now we have at a disposal a 200W fundamental beam with 1ps pulses,90W in the second harmonic,and 38W in the third one.
Trvalý link: https://hdl.handle.net/11104/0333869