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Proceedings Paper

Anti-reflection and polarizing photonic structures for high-power fiber applications
Author(s): Martin Vanek; Jan Vanis; Yauhen Baravets; Filip Todorov; Jiri Ctyroky; Pavel Honzatko
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Paper Abstract

We investigated behaviours of 1D binary diffraction gratings fabricated on optical fiber facets. Only sub-wavelength structures were considered to suppress higher diffraction orders. The aperiodic rigorous coupled wave analysis, the Fourier modal method and the finite-difference time-domain numerical methods were used to compute and optimize the modal reflectance of the investigated structures. Optimized gratings were milled on fiber facets by focused ion beam. One of the gratings was tested in a thulium-doped fiber laser where it acted as a low re ectivity polarizing output mirror. A slope efficiency of the laser and a beam quality parameter were conserved while lasing threshold slightly increased.

Paper Details

Date Published: 16 May 2017
PDF: 8 pages
Proc. SPIE 10232, Micro-structured and Specialty Optical Fibres V, 102320W (16 May 2017); doi: 10.1117/12.2271705
Show Author Affiliations
Martin Vanek, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Czech Technical Univ. in Prague (Czech Republic)
Jan Vanis, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Yauhen Baravets, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Czech Technical Univ. of Prague (Czech Republic)
Filip Todorov, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Jiri Ctyroky, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)
Pavel Honzatko, Institute of Photonics and Electronics of the ASCR, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 10232:
Micro-structured and Specialty Optical Fibres V
Kyriacos Kalli; Jiri Kanka; Alexis Mendez; Pavel Peterka, Editor(s)

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