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Polarizing fibre facet gratings with high modal reflectance
Author(s): Martin Vanek; Pavel Honzatko
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Paper Abstract

The leaky-mode resonant diffraction gratings fabricated in a high-refractive index layer deposited on the facet of an optical fibre can serve as wavelength- and polarization-selective elements in fibre lasers. We predict a modal reflectance peak as high as 86% with a 3 dB spectral bandwidth of about 50 nm and a polarization extinction ratio of 17 dB using a theoretical model based on a 3D FDTD method. Gratings were fabricated by focused ion beam milling. Experimentally measured transmission spectra were compared with numerical simulations adapted to real grating profiles.

Paper Details

Date Published: 18 December 2018
PDF: 6 pages
Proc. SPIE 10976, 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 109760J (18 December 2018); doi: 10.1117/12.2517427
Show Author Affiliations
Martin Vanek, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)
Pavel Honzatko, Institute of Photonics and Electronics of the CAS, v.v.i. (Czech Republic)


Published in SPIE Proceedings Vol. 10976:
21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Pavel Zemánek, Editor(s)

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