Results 271 to 280 of about 180,033 (332)

Topological Photonic Crystal Fiber

Conference on Lasers and Electro-Optics, 2022
Despite recent progress in topological photonics, a challenge remains to realise topological states in a scalable platform. Here we fabricate optical fiber characterized by a topological invariant and demonstrate protected supermode propagation over 106 wavelengths.
Nathan Roberts, Guido Baardink, Josh Nunn, Peter J Mosley, Anton Souslov   +4 more
openaire   +1 more source

Chirped Large Mode Area Photonic Crystal Modal Fibers and its Resonance Modes Based on Finite Element Technique

Journal of optical communications, 2019
The study has outlined the finite element technique used for the fiber modal analysis of photonic crystal fiber (PCF) structure with a hexagonal/circular air holes arrangement on the cladding of pure fiber-optic silica.
I. Amiri, A. Rashed, Kaushik Sarker, B. K. Paul, K. Ahmed   +4 more
semanticscholar   +1 more source

Mechanochromic photonic-crystal fibers based on continuous sheets of aligned carbon nanotubes.

Angewandte Chemie, 2015
A new family of mechanochromic photonic-crystal fibers exhibits tunable structural colors under stretching. This novel mechanochromic fiber is prepared by depositing polymer microspheres onto a continuous aligned-carbon-nanotube sheet that has been wound
Xuemei Sun, Jing Zhang, Xin Lu, Xin Fang, Huisheng Peng   +4 more
semanticscholar   +1 more source

Photonic crystal fibers

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 ...
openaire   +1 more source

Elliptical-hole photonic crystal fibers

Optics Letters, 2001
We study the dispersive properties of photonic crystal fibers (PCF's) with elliptical air holes. The unusual guidance of PCF leads to novel behavior of the birefringence, group-velocity walk-off, and dispersion parameters, including the possibility of zero walk-off with high birefringence in the single-mode regime. A number of these effects are closely
M J, Steel, R M, Osgood
openaire   +2 more sources

Liquid crystal photonic crystal fiber

Frontiers in Optics 2004/Laser Science XXII/Diffractive Optics and Micro-Optics/Optical Fabrication and Testing, 2004
A new class of hybrid photonic crystal fibers infiltrated with liquid crystals offers novel functionalities and ultimately takes full advantage of the different waveguiding effects demonstrated today. Among the most interesting possibilities, we demonstrate 'distributed' tunable filter and switching functionalities operating by the photonic bandgap ...
Anders Bjarklev, Thomas Tanggaard Larsen, David Sparre Hermann, Jes Broeng   +3 more
openaire   +1 more source

Diffractive photonic crystal fiber

SPIE Proceedings, 2003
In 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, Henk F. Arnoldus, John T. Foley   +2 more
openaire   +1 more source

Silicon Photonic Crystal Fiber

Conference on Lasers and Electro-Optics/International Quantum Electronics Conference, 2009
A hollow-core photonic crystal fiber (PCF) made of silicon is reported for the first time. The fiber is obtained by converting silica fiber to porous silicon using magnesiothermic reduction.
Yaman, Fatih, Pang, Hyungseok, Xie, Xiaobo, LiKamWa, Patrick, Li, Guifang   +4 more
openaire   +2 more sources

Photonic Crystal Fiber IFOGs

Optical Fiber Sensors, 2006
We have built and tested an interferometric fiber-optic gyroscope made with photonic crystal fiber. This paper reports the test results and examines the advantages of photonic crystal fiber for this type of gyroscope.
Jesse Tawney, Farhad Hakimi, R. L. Willig, John Alonzo, Ryan T. Bise, Frank DiMarcello, Eric M. Monberg, Thomas Stockert, Dennis J. Trevor   +8 more
openaire   +1 more source

Photonic Crystal Fibers challenge

Proceedings of the International Conference on Computer Systems and Technologies and Workshop for PhD Students in Computing, 2009
The paper describes some kinds of Photonic Crystal Fibers and their features. The problems of attenuation of the PCF in connection with their properties and design are discussed. An analytical method for calculating the attenuation and dispersion of the spreading modes of Bragg fibers, represented as a multilayer dielectric structure, is proposed.
Jordan Urumov, Zhejno Zhejnov
openaire   +1 more source