Optical vortex generation from a diode-pumped alexandrite laser
File(s)GMThomas_vortex_LPL_revised.pdf (8.35 MB)
Accepted version
Author(s)
Thomas, Gabrielle
Minassian, Ara
Damzen, MJ
Type
Journal Article
Abstract
We present the demonstration of an optical vortex mode directly generated from a diode-pumped alexandrite slab laser, operating in the bounce geometry. This is the first demonstration of an optical vortex mode generated from an alexandrite laser or from any other vibronic laser. An output power of 2 W for a vortex mode with a 'topological charge' of 1 was achieved and the laser was made to oscillate with both left- and right-handed vorticity. The laser operated at two distinct wavelengths simultaneously, 755 and 759 nm, due to birefringent filtering in the alexandrite gain medium. The result offers the prospect of broadly wavelength tunable vortex generation directly from a laser.
Date Issued
2018-03-01
Date Acceptance
2018-01-12
Citation
Laser Physics Letters, 2018, 15
ISSN
1612-2011
Publisher
IOP Publishing
Journal / Book Title
Laser Physics Letters
Volume
15
Copyright Statement
© 2018 Astro Ltd. This is an author-created, un-copyedited version of an article accepted for publication in Laser Physics Letters. IOP Publishing Ltd is not responsible for any errors or omissions in this version of the manuscript or any version derived from it. The definitive publisher authenticated version is available online at http://iopscience.iop.org/article/10.1088/1612-202X/aaa9a4/meta
Sponsor
Engineering & Physical Science Research Council (EPSRC)
European Space Agency / Estec
Engineering and Physical Sciences Research Council
Grant Number
DPF/GT/2012
RFQ 3-13611/12/NL/PA
Doctoral Prize Fellowship
Subjects
0205 Optical Physics
Optoelectronics & Photonics
Publication Status
Published
Article Number
045804