Spatially and temporally shaped, 100W, all-fiber, pulsed laser at 1.0 µm

Author

Alam, S. ; Lin, D. ; Malinowski, A. ; Hayes, J.R. ; Chen, K.K. ; Flannagan, J. ; Geddes, V. ; Nilsson, J. ; Ingram, S. ; Norman, S.R. ; Khan, A. ; Neil, W.O. ; Richardson, D.J.

Author_Institution

Optoelectron. Res. Centre, Univ. of Southampton, Southampton, UK

fYear

2009

fDate

14-19 June 2009

Firstpage

1

Lastpage

1

Abstract

Here we present an all-fiber, nanosecond pulsed Yb-doped MOPA without any free space pumping. Average output power in excess of 100W was achieved.Using pulse shaping technique, we obtained square shaped output pulses, maximizing pulse energy and minimizing the pulse peak power for a given pulse duration. Using axicon lenses, we had successfully realized ring shaped output beam from a collimated Gaussian beam.Such high energy, high peak power pulses with appropriate beam shaping can be used for a wide range of applications including rapid prototyping, material processing etc.

Keywords

laser beams; lenses; optical fibres; optical pulse shaping; oscillators; power amplifiers; ytterbium; JkJk:Yb; all-fiber nanosecond pulse MOPA; axicon lens; collimated Gaussian beam; free space pumping; power 100 W; pulse shaping technique; ring shaped beam; square shaped pulse; wavelength 1.0 mum; Gas lasers; Laser beam cutting; Laser beams; Optical pulse shaping; Optical pulses; Power generation; Power lasers; Pulse amplifiers; Pulse shaping methods; Ring lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Lasers and Electro-Optics 2009 and the European Quantum Electronics Conference. CLEO Europe - EQEC 2009. European Conference on

Conference_Location

Munich

Print_ISBN

978-1-4244-4079-5

Electronic_ISBN

978-1-4244-4080-1

Type

conf

DOI

10.1109/CLEOE-EQEC.2009.5192858

Filename

5192858