Open AccessGeneration of vector polarization in a Nd:YAG laser
Author(s) -
Sanbin Chen,
Jianlang Li,
Shouhuan Zhou,
Hong Zhao,
Kenichi Ueda
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.015136
Subject(s) - optics , laser , materials science , birefringence , polarization (electrochemistry) , fiber laser , laser pumping , laser power scaling , diode pumped solid state laser , physics , chemistry
We demonstrated the generation of an azimuthally and radially polarized laser beam in a Nd:YAG laser in which a birefringent yttrium vanadate (c-cut YVO 4 ) crystal was used as the intra-cavity polarization discriminator. AP and RP with respective output 2.4W (o-o efficiency of 35.4%, M 2 = 2.3) and 2.52W (o-o efficiency of 37.2%, M 2 = 2.4) were generated at absorbed pump power 6.78W. We discuss a simple method for converting between azimuthal and radial polarizations by only regulating input pump power and mechanism of mode selection in the laser. This vector laser will facilitate many applications.