Synchronizing single-shot high-energy iodine photodissociation laser PALS and high-repetition-rate femtosecond Ti:sapphire laser system

0487961 - FZÚ 2018 RIV US eng J - Článek v odborném periodiku
Dostál, Jan - Dudžák, Roman - Pisarczyk, T. - Pfeifer, Miroslav - Huynh, Jaroslav - Chodukowski, T. - Kalinowska, Z. - Krouský, E. - Skála, J. - Hřebíček, Jan - Medřík, Tomáš - Golasowski, Jiří - Juha, Libor - Ullschmied, J.
Synchronizing single-shot high-energy iodine photodissociation laser PALS and high-repetition-rate femtosecond Ti:sapphire laser system.
Review of Scientific Instruments. Roč. 88, č. 4 (2017), s. 1-11, č. článku 045109. ISSN 0034-6748. E-ISSN 1089-7623
Institucionální podpora: RVO:68378271
Klíčová slova: oscillators * plasma diagnostics * optical signal processing * mode locking * laser amplifiers
Obor OECD: Fluids and plasma physics (including surface physics)
Impakt faktor: 1.428, rok: 2017

A system of precise pulse synchronization between a single-shot large-scale laser exploiting an acousto-optical modulator and a femtosecond high repetition rate laser is reported in this article. This opto-electronical system has been developed for synchronization of the sub-nanosecond kJ-class iodine photodissociation laser system (Prague Asterix Laser System—PALS) with the femtosecond 25-TW Ti:sapphire (Ti:Sa) laser operating at a repetition rate 1 kHz or 10 Hz depending on the required energy level of output pulses. At 1 kHz synchronization regime, a single femtosecond pulse of duration about 45 fs and a small energy less than 1 mJ are exploited as a probe beam for irradiation of a three-frame interferometer, while at 10 Hz repetition rate a single femtosecond pulse with higher energy about 7–10 mJ is exploited as a probe beam for irradiation of a two-channel polaro-interferometer. The synchronization accuracy ±100 ps between the PALS and the Ti:Sa laser pulses has been achieved in both regimes of synchronization. The femtosecond interferograms of laser-produced plasmas obtained by the three-frame interferometer and the femtosecond polarimetric images obtained by the two-frame polaro-interferometer confirm the full usefulness and correct functionality of the proposed method of synchronization.
Trvalý link: http://hdl.handle.net/11104/0282578