Hundred mJ level, high contrast OPCPA/Yb:YAG hybrid laser system

Author

Suzuki, M. ; Kiriyama, H. ; Daito, I. ; Okada, H. ; Bolton, P.R. ; Sugiyama, A. ; Kondo, K. ; Kawanishi, S. ; Sato, M. ; Tamaoki, Y. ; Yoshii, Tsurugi ; Maeda, J. ; Matsuoka, S. ; Kan, H.

Author_Institution

Photo-Med. Res. Center, Japan Atomic Energy Agency, Kyoto, Japan

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

Yb:YAG CPA have a potential to develop a compact, high peak power at high repetition rates. For high energy pulses of short duration Yb:YAG regenerative amplifiers have mainly been studied for which significant prepulse and amplified spontaneous emission (ASE). In laser proton acceleration studies it is very important to suppress the prepulse and ASE levels, because a preplasma is generated before the peak of the laser pulse, therefore the maximum proton energy is limited. To overcome this problem, the OPCPA can efficiently provide high gain for the main pulse while suppressing prepulse amplification. Here we have first demonstrated a hundred mJ level, femtosecond of an OPCPA/Yb:YAG hybrid laser system with a contrast level of 10^-9 at -150 ps.

Keywords

optical parametric amplifiers; superradiance; ytterbium; yttrium compounds; OPCPA; YAG:Yb; amplified spontaneous emission; high contrast hybrid laser system; high energy pulses; short duration regenerative amplifiers; time -150 ps;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics Europe (CLEO EUROPE/EQEC), 2011 Conference on and 12th European Quantum Electronics Conference

Conference_Location

Munich

ISSN

Pending

Print_ISBN

978-1-4577-0533-5

Electronic_ISBN

Pending

Type

conf

DOI

10.1109/CLEOE.2011.5942464

Filename

5942464