Red, orange, and dual wavelength vortex emission from Pr:WPFGF fiber laser using a microscope slide output coupler

Visible vortex beams have a large array of applications; however, the sources are often large or complex. Here, we present a compact vortex source with red, orange, and dual wavelength emission. This Pr:Waterproof Fluoro-Aluminate Glass fiber laser uses a standard microscope slide as an interferomet...

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Bibliographic Details
Published in:Optics express 2023-05, Vol.31 (10), p.16607-16614
Main Authors: Kerridge-Johns, William R, Srinivasa Rao, A, Fujimoto, Yasushi, Omatsu, Takashige
Format: Article
Language:English
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Summary:Visible vortex beams have a large array of applications; however, the sources are often large or complex. Here, we present a compact vortex source with red, orange, and dual wavelength emission. This Pr:Waterproof Fluoro-Aluminate Glass fiber laser uses a standard microscope slide as an interferometric output coupler, yielding high quality first order vortex modes in a compact setup. We further demonstrate the broad (∼5 nm) emission bands in the orange (610 nm), red (637 nm) and near-infrared regions (698 nm), with the potential for green (530 nm) and cyan (485 nm) emission. This is a low-cost, compact and accessible device giving high quality modes for visible vortex applications.
ISSN:1094-4087
1094-4087
DOI:10.1364/OE.491867