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Proceedings Paper

Dual-core microstructure optical fiber as a potential polarization splitter
Author(s): Lubomir Curilla; Pavol Stajanca; Ignac Bugar; Ryszard Buczynski; Frantisek Uherek
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Paper Abstract

Polarization splitting performance of a special multi-component glass made dual – core microstructure optical fiber (DC MOF) was investigated in the near infrared region. The output dual-core intensity ratio changes were analyzed behind a rotating polarizer both in spectrally resolved and integrated manner under broadband femtosecond pulse excitation of the fiber in the C-band. The polarization angle dependence of the dual-core intensity ratio exhibited similar non-symmetrical character in the case of both camera and spectrometer registration method. The 70 nm broad femtosecond radiation allowed to set an optimal wavelength, at which the extinction ratio difference between the extreme cases was maximized with significantly higher value than by the spectrally integrated method. Non-proper polarization splitting performance was observed with angle distance different than 90° between the extreme cases for the both orthogonal input polarization directions. Afterwards, optimizing the input polarization angle the angle distance became the proper right-angle, which behavior is interpreted in terms of inhomogenously polarized fundamental supermodes supported also by numerical mode analysis of the investigated DC MOF.

Paper Details

Date Published: 5 December 2014
PDF: 11 pages
Proc. SPIE 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 94411D (5 December 2014); doi: 10.1117/12.2087316
Show Author Affiliations
Lubomir Curilla, Comenius Univ. in Bratislava (Slovakia)
Pavol Stajanca, Comenius Univ. in Bratislava (Slovakia)
Ignac Bugar, International Laser Ctr. (Slovakia)
Vienna Univ. of Technology (Austria)
Ryszard Buczynski, Institute of Materials Technology (Poland)
Frantisek Uherek, International Laser Ctr. (Slovakia)

Published in SPIE Proceedings Vol. 9441:
19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics
Agnieszka Popiolek-Masajada; Waclaw Urbanczyk, Editor(s)

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