Open AccessWavelength-locked vectorial fiber laser manipulated by Pancharatnam-Berry phase
Author(s) -
Bin Huang,
Qingjun Wang,
Guobao Jiang,
Jun Yi,
Pinghua Tang,
Jun Liu,
Chujun Zhao,
Hailu Luo,
Shuangchun Wen
Publication year - 2017
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.25.000030
Subject(s) - optics , polarizer , laser linewidth , extinction ratio , wavelength , laser , polarization (electrochemistry) , physics , fiber laser , materials science , birefringence , chemistry
We report a wavelength-locked cladding-pumped ytterbium-doped fiber laser that can simultaneously emit radially and azimuthally polarized beams based on Pancharatnam-Berry phase optical elements. Multi-wavelength free running operation of the radially and azimuthally polarized laser beams can be switched to a single-wavelength one assisted by volume Bragg grating, with wavelength locked at around 1053.4 nm and spectral linewidth of 0.06 nm (FWHW). By rotating the glan-taylor polarizer, we can obtain switchable radially and azimuthally polarized beams output. The radially and azimuthally polarized beams mode purity can maintain 97.3% and 96.3% at maximum output power, and the polarization extinction ratio (PER) can reach 97.8% and 95.9% for the radially and azimuthally polarized laser, respectively.