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Proceedings Paper

Photonic crystal fiber with large-mode area and low-bending loss for high-power compact lasers and amplifiers
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Paper Abstract

We report on a flexible large mode area (LMA) photonic crystal fiber (PCF) for high power laser and amplifier applications. We designed a fiber cross-section that includes two regions with different air-filling factors on opposite sides of the fiber core. This design allows suppressing higher order modes (HOMs) when the fiber is bent around a 10 cm radius at a wavelength of 1064 nm. The fiber then exhibits single-mode (SM) operation within a very large core with a diameter larger than 60 μm. The loss of the fundamental mode (FM) is lower than 0.01 dB/m. We can therefore consider building compact high power fiber lasers and amplifiers with a nearly diffraction limited beam output using our LMA PCF.

Paper Details

Date Published: 15 February 2012
PDF: 7 pages
Proc. SPIE 8237, Fiber Lasers IX: Technology, Systems, and Applications, 82370Y (15 February 2012); doi: 10.1117/12.908025
Show Author Affiliations
Marek Napierała, Vrije Univ. Brussel (Belgium)
Wroclaw Univ. of Technology (Poland)
Elżbieta Bereś-Pawlik, Wroclaw Univ. of Technology (Poland)
Tomasz Nasilowski, Military Univ. of Technology (Poland)
Paweł Mergo, Marie Curie-Sklodowska Univ. (Poland)
Francis Berghmans, Vrije Univ. Brussel (Belgium)
Hugo Thienpont, Vrije Univ. Brussel (Belgium)

Published in SPIE Proceedings Vol. 8237:
Fiber Lasers IX: Technology, Systems, and Applications
Eric C. Honea; Sami T. Hendow, Editor(s)

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