Journal ArticleDOI
Experimental and theoretical investigations of birefringent holey fibers with a triple defect
Marcin Szpulak,G. Statkiewicz,Jacek Olszewski,Tadeusz Martynkien,Waclaw Urbanczyk,Jan Wojcik,Mariusz Makara,Jacek Klimek,Tomasz Nasilowski,Francis Berghmans,Hugo Thienpont +10 more
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TLDR
Results of the authors' calculations show that technological imperfections significantly affect the fiber's birefringence, and a significant disagreement between theoretical and experimental values of cutoff wavelengths is observed.Abstract:
We have manufactured and characterized a birefringent holey fiber of a new construction. The birefringence in this fiber is induced by the highly elliptical shape of the core, which consists of a triple defect in a hexagonal structure. Using a hybrid edge–nodal finite-element method, we calculated the spectral dependence of phase and group modal birefringence for spatial modes E11 and E21 in idealized and in real fiber, whose geometry we determined by using a scanning-electron microscope. Results of our calculations show that technological imperfections significantly affect the fiber's birefringence. Normalized cutoff wavelengths for higher-order modes relative to the filling factor were also determined for the idealized structure. We observed a significant disagreement between theoretical and experimental values of cutoff wavelengths, which was attributed to high confinement losses near the cutoff condition. We also measured the spectral dependence of the phase and the group modal birefringence for spatial modes E11 and E21. The measured parameters showed good agreement with the results of modeling.read more
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Journal ArticleDOI
Optical sensing with photonic crystal fibers
TL;DR: A review of optical fiber sensing demonstrations based on photonic crystal fibers is presented in this paper, which is orga- nized in five main sections: the first three deal with sensing approaches relying on fiber Bragg gratings, long-period gratings and interferometric structures; the fourth one reports applica- tions of these fibers for gas and liquid sensing; the last section focuses on the exploitation of nonlinear effects in pho- tonic crystal fibers for sensing.
Journal ArticleDOI
Highly birefringent microstructured fibers with enhanced sensitivity to hydrostatic pressure.
Tadeusz Martynkien,Gabriela Statkiewicz-Barabach,Jacek Olszewski,Jan Wojcik,Pawel Mergo,Thomas Geernaert,Camille Sonnenfeld,Alicja Anuszkiewicz,Marcin K. Szczurowski,Karol Tarnowski,Mariusz Makara,K. Skorupski,Jacek Klimek,Krzysztof Poturaj,Waclaw Urbanczyk,Tomasz Nasilowski,Francis Berghmans,Hugo Thienpont +17 more
TL;DR: Two birefringent microstructuring fibers are designed, manufactured and characterized that feature a 5-fold increase in polarimetric sensitivity to hydrostatic pressure compared to the earlier reported values for microstructured fibers.
Journal ArticleDOI
Simultaneous measurement of multiparameters using a Sagnac interferometer with polarization maintaining side-hole fiber.
Orlando Frazão,Susana Silva,José Baptista,Jose Luis Santos,Gabriela Statkiewicz-Barabach,Waclaw Urbanczyk,Jan Wojcik +6 more
TL;DR: A Sagnac interferometer with a section of a polarization maintaining side-hole fiber for multiparameter measurement is proposed and a matrix equation for simultaneous measurement of the three parameters--torsion, temperature, and longitudinal strain--is proposed.
Journal ArticleDOI
Highly nonlinear and highly birefringent dispersion compensating photonic crystal fiber
TL;DR: In this paper, an optimum design for highly birefringent hybrid photonic crystal fiber (HyPCF) based on a modified structure for broadband compensation covering the S, C, and L-communication bands is presented.
Journal ArticleDOI
Highly Birefringent Elliptical-Hole Photonic Crystal Fibers With Double Defect
Daru Chen,Linfang Shen +1 more
TL;DR: In this article, a novel elliptical-hole photonic crystal fiber (PCF) with double defect is theoretically investigated, and its high birefringence [including both the phase-index birerringence (PIB) and the group-index Birerfitting (GIB)] is demonstrated, which can reach an order of 10-2.
References
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Journal ArticleDOI
Highly birefringent photonic crystal fibers
A. Ortigosa-Blanch,Jonathan Knight,William J. Wadsworth,Jesús Arriaga,Brian Joseph Mangan,Tim A. Birks,P. St. J. Russell +6 more
TL;DR: Based on spectral measurements of the polarization mode beating, it is estimated that the strongly anisotropic photonic crystal fiber has a beat length of approximately 0.4 mm at a wavelength of 1540 nm, in good agreement with the results of modeling.
Journal ArticleDOI
Highly birefringent index-guiding photonic crystal fibers
T.P. Hansen,Jes Broeng,Stig E. Barkou Libori,Erik Knudsen,A. Bjarklev,J.R. Jensen,H.R. Simonsen +6 more
TL;DR: In this paper, the cutoff properties of birefringent photonic crystal fibers with respect to multimode behavior were analyzed theoretically and experimental results were presented in agreement with theoretical predictions.
Journal ArticleDOI
Optical properties of a low-loss polarization-maintaining photonic crystal fiber
TL;DR: A low-loss and highly birefringent polarization maintaining photonic crystal fiber has been fabricated and the fiber loss and modal bireFringence at 1550 nm were 1.3 dB/km and 1.4x10 -3 , respectively.
Journal ArticleDOI
Multipole method for microstructured optical fibers. I. Formulation
Thomas P. White,Boris T. Kuhlmey,Ross C. McPhedran,Daniel Maystre,Gilles Renversez,C. Martijn de Sterke,Lindsay C. Botten +6 more
TL;DR: In this paper, a multipole method for calculating the modes of microstructured optical fibers is described, which uses a multi-hole expansion centered on each hole to enforce boundary conditions accurately and matches expansions with different origins by use of addition theorems.
Journal ArticleDOI
Confinement losses in microstructured optical fibers
TL;DR: A multipole formulation that can be used for high-accuracy calculations of the full complex propagation constant of a microstructured optical fiber with a finite number of holes is described.