Graphene Q-Switched Compact Yb:YAG Laser

Author

Serres, Josep Maria ; Jambunathan, Venkatesan ; Mateos, Xavier ; Loiko, Pavel ; Lucianetti, Antonio ; Mocek, Tomas ; Yumashev, Konstantin ; Petrov, Valentin ; Griebner, Uwe ; Aguilo, Magdalena ; Diaz, Francesc

Author_Institution

Fis. i Cristal lografia de Mater. i Nanomater., Univ. Rovira i Virgili, Tarragona, Spain

Volume

7

Issue

5

fYear

2015

Firstpage

1

Lastpage

7

Abstract

We describe a compact Yb:YAG laser Q-switched by a graphene-based saturable absorber and pumped by a laser diode at 932 or 969 nm. The compact laser generates a maximum average output power value of 185 mW at 1032 nm with a slope efficiency value of 12%. The shortest duration of the Q-switched pulse achieved is 228 ns at a repetition frequency of 285 kHz. The maximum pulse energy amounts to 0.65 μJ.

Keywords

Q-switching; graphene; nanophotonics; optical pulse generation; optical pumping; optical saturable absorption; solid lasers; ytterbium; C; YAG:Yb; efficiency 12 percent; energy 0.65 muJ; frequency 285 kHz; graphene Q-switched compact Yb:YAG laser; laser diode pumping; pulse energy; saturable absorber; slope efficiency; time 228 ns; wavelength 1032 nm; wavelength 932 nm; wavelength 969 nm; Absorption; Crystals; Graphene; Laser excitation; Lenses; Power generation; Semiconductor lasers; Graphene; Q-switched laser; saturable absorber;

fLanguage

English

Journal_Title

Photonics Journal, IEEE

Publisher

ieee

ISSN

1943-0655

Type

jour

DOI

10.1109/JPHOT.2015.2476756

Filename

7239523