High-energy, diode-pumped Yb:CaF2 disk-laser

Author

Siebold, M. ; Loeser, M. ; Roeser, F. ; Kroll, F. ; Körner, J. ; Hein, J. ; Schramm, U.

Author_Institution

Inst. for Radiat. Phys., Helmholtz-Center Dresden-Rossendorf, Dresden, Germany

fYear

2011

fDate

22-26 May 2011

Firstpage

1

Lastpage

1

Abstract

A multi-pass Yb:CaF₂ disk amplifier pumped with a diode laser module was built having a peak power of 16.8 kW (provided by Lastronics GmbH, Germany). A maximum pump energy of 40.3 J at a wavelength of 940 nm was obtained at a pump duration of 2.4 ms while the flat-top shaped pump profile (6 χ 6 mm2) was homogenized by a doublet of micro-lens arrays inside the module and imaged into the gain medium. The seed pulses with a duration of 6 ns (FWHM) were generated in a Q-switched Yb YAG oscillator and then pre-amplified from 400 μj to 100 mJ at a repetition rate of 1 Hz in a booster Yb:YAG amplifier.

Keywords

Q-switching; calcium compounds; microlenses; optical arrays; optical pulse generation; optical pumping; solid lasers; ytterbium; CaF₂:Yb; Q-switching; YAG:Yb; Yb YAG oscillator; Yb:CaF₂ disk-laser; Yb:YAG amplifier; diode laser module; energy 100 mJ; energy 40.3 J; energy 400 muJ; flat-top shaped pump profile; frequency 1 Hz; microlens doublet arrays; power 16.8 kW; seed pulse generation; time 2.4 ms; time 6 ns; wavelength 940 nm; Laser excitation; Laser theory; Materials; Mirrors; Optical reflection; Semiconductor lasers;

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.2011.5942465

Filename

5942465