6533b7cffe1ef96bd125990b
RESEARCH PRODUCT
Vector description of higher-order modes in photonic crystal fibers
Albert FerrandoEnrique SilvestreJuan José MiretPedro AndrésMiguel V. Andréssubject
PhysicsMode volumeOptical fiberbusiness.industrySingle-mode optical fiberPhysics::OpticsLong-period fiber gratingPolarization (waves)Atomic and Molecular Physics and OpticsElectronic Optical and Magnetic Materialslaw.inventionOpticslawComputer Science::Logic in Computer ScienceDispersion relationComputer Vision and Pattern RecognitionbusinessPhotonic-crystal fiberPhotonic crystaldescription
We extensively study the propagation features of higher-order modes in a photonic crystal fiber (PCF). Our analysis is based on a full-vector modal technique specially adapted to accurately describe light propagation in PCF's. Unlike conventional fibers, PCF's exhibit a somewhat unusual mechanism for the generation of higher-order modes. Accordingly, PCF's are characterized by the constancy of the number of modes below a wavelength threshold. An explicit verification of this property is given through a complete analysis of the dispersion relations of higher-order modes in terms of the structural parameters of this kind of fiber. The transverse irradiance distributions for some of these higher-order modes are also presented, showing an excellent agreement with recent experimental measurements. In the same way, the full-vector nature of our approach allows us to analyze the rich polarization structure of the PCF mode spectrum.
| year | journal | country | edition | language |
|---|---|---|---|---|
| 2000-07-01 | Journal of the Optical Society of America. A, Optics, image science, and vision |