Results 301 to 310 of about 59,676 (341)
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Journal of Lightwave Technology, 2003
Photonic crystal fibers guide light by corralling it within a periodic array of microscopic air holes that run along the entire fiber length. Largely through their ability to overcome the limitations of conventional fiber optics—for example, by permitting low-loss guidance of light in a hollow core—these fibers are proving to have a multitude of ...
A. Shukla, P. Kandhari, A. Bhalla
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Photonic crystal fibers guide light by corralling it within a periodic array of microscopic air holes that run along the entire fiber length. Largely through their ability to overcome the limitations of conventional fiber optics—for example, by permitting low-loss guidance of light in a hollow core—these fibers are proving to have a multitude of ...
A. Shukla, P. Kandhari, A. Bhalla
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Photonic crystal fibers with material anisotropy [PDF]
Optical and Quantum Electronics, 2005 In this paper we are modeling the interplay of material and form birefringence in photonic crystal fibers. We introduce an efficient numerical method for the calculation of the modal structure. Our approach relies solving the fully vectorial wave equation for the transverse magnetic field and the respective propagation constants using a plane wave ...
Rafal Kotynski +5 more
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Photonic crystal fiber coupler
Optics Letters, 2002Fiber couplers made with photonic crystal fibers (PCF) are reported. Two types of PCF were fabricated by means of stacking a group of silica tubes around a silica rod and drawing them. The fiber couplers were made by use of the fused biconical tapered method. With a fiber that had five hexagonally stacked layers of air holes, a 33/67 coupling ratio was
Jinchae Kim +5 more
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Modeling of photonic crystal fibers
2007 19th International Conference on Applied Electromagnetics and Communications, 2007This paper presents an analysis and an overview of characteristics and possible applications of periodic and quasi-periodic photonic crystal fibers (PCF). The analysis is based on the decomposition of the transverse electric field into a series of orthogonal modes which are used to solve the vector wave equation for optical fibers.
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Photonic crystal fibers in biophotonics
SPIE Proceedings, 2011We observed recent experimental results in area of photonic crystal fibers appliance. Possibility of creation of fiber-based broadband light sources for high resolution optical coherence tomography is discussed. Using of femtosecond pulse laser allows for generation of optical radiation with large spectral width in highly nonlinear solid core photonic ...
Valery V. Tuchin +2 more
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SPIE Proceedings, 2005
A brief review of three specially designed types of photonic crystal fiber (PCF) that we recently developed for high performance devices is presented. The first is absolutely single polarization PCF (ASPF), which guides only one polarization mode, the second is dispersion-flattened polarization maintaining PCF for Supercontinuum generation, and the ...
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A brief review of three specially designed types of photonic crystal fiber (PCF) that we recently developed for high performance devices is presented. The first is absolutely single polarization PCF (ASPF), which guides only one polarization mode, the second is dispersion-flattened polarization maintaining PCF for Supercontinuum generation, and the ...
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Advanced Photonics, 2011
This tutorial covers the concepts and properties of photonic crystal fibers, also known as microstructured or holey fibers. The similarities and differences between PCFs and specialty step¬index fibers are discussed, together with fabrication and applications.
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This tutorial covers the concepts and properties of photonic crystal fibers, also known as microstructured or holey fibers. The similarities and differences between PCFs and specialty step¬index fibers are discussed, together with fabrication and applications.
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Highly Birefringent Photonic Crystal Fibers
Optics and Photonics News, 2000We report a strongly anisotropic photonic crystal fiber. Twofold rotational symmetry was introduced into a single-mode fiber structure by creation of a regular array of airholes of two sizes disposed about a pure-silica core. Based on spectral measurements of the polarization mode beating, we estimate that the fiber has a beat length of approximately 0.
A. Ortigosa-Blanch +6 more
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Photonic Crystal Fibers and Their Applications
IEEJ Transactions on Electrical and Electronic Engineering, 2009AbstractDramatic advances in research and development on photonic crystal fibers (PCF) have created new properties that had not been achievable using conventional fibers. PCFs have many fascinating features. The very high relative refractive index between the fiber core and air‐hole cladding enables several prominent properties, notably endlessly ...
Osamu Tohyama, Syun-ichiro Yamaguchi
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Diffractive photonic crystal fiber
SPIE Proceedings, 2003In the present report we propose an innovative concept for effective diffractive wave guiding of optical (infrared, visible and X-rays) beams based on the effect of diffractive multifocal focusing of radiation (DMFR). The optical DMFR effect, predicted earlier by theory, on a bicomponent diffraction system, has recently been confirmed experimentally ...
Renat R. Letfullin +2 more
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