5 December 2014 Dual-core microstructure optical fiber as a potential polarization splitter
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Proceedings Volume 9441, 19th Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics; 94411D (2014) https://doi.org/10.1117/12.2087316
Event: XIX Polish-Slovak-Czech Optical Conference on Wave and Quantum Aspects of Contemporary Optics, 2014, Jelenia Gora, Poland
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.
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Lubomir Curilla, Lubomir Curilla, Pavol Stajanca, Pavol Stajanca, Ignac Bugar, Ignac Bugar, Ryszard Buczynski, Ryszard Buczynski, Frantisek Uherek, Frantisek Uherek, } "Dual-core microstructure optical fiber as a potential polarization splitter", 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; https://doi.org/10.1117/12.2087316
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