Polarizing fibre facet gratings with high modal reflectance

Martin Vanek; Pavel Honzatko

doi:10.1117/12.2517427

18 December 2018 Polarizing fibre facet gratings with high modal reflectance

Martin Vanek, Pavel Honzatko

Proceedings Volume 10976, 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 109760J (2018) https://doi.org/10.1117/12.2517427
Event: 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2018, Lednice, Czech Republic

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.

Citation Download Citation

Martin Vanek and Pavel Honzatko "Polarizing fibre facet gratings with high modal reflectance", Proc. SPIE 10976, 21st Czech-Polish-Slovak Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 109760J (18 December 2018); https://doi.org/10.1117/12.2517427

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