Designing air-core photonic-bandgap fibers free of surface modes
- 4 May 2004
- journal article
- Published by Institute of Electrical and Electronics Engineers (IEEE) in IEEE Journal of Quantum Electronics
- Vol. 40 (5), 551-556
- https://doi.org/10.1109/jqe.2004.826429
Abstract
It is known that the coupling of core modes to surface modes in air-core photonic-bandgap fiber (PBF) can give rise to large propagation losses. Using computer simulations, we analyze the relationship between the air-core geometry and the presence or absence of the surface modes in air-core PBFs with a triangular hole pattern. We identify ranges of core radii for which the fiber supports no surface modes over the entire wavelength range of the bandgap, i.e., only core modes are present. In particular, for a hole radius /spl rho/=0.47/spl Lambda/, where /spl Lambda/ is the hole spacing, the core supports a single mode and no surface modes for core radii between 0.8/spl Lambda/ and 1.1/spl Lambda/. The absence of surface modes suggests that fibers within this range of configurations should exhibit a very low propagation loss. We also show that the existence of surface modes can be predicted quite simply from a study of the bulk modes alone, which is much simpler and faster than carrying out a full analysis of the defect modes.Keywords
This publication has 12 references indexed in Scilit:
- Ultrabroad band white light generation from a multimode photonic bandgap fiber with an air corePublished by Institute of Electrical and Electronics Engineers (IEEE) ,2005
- Photonic crystal fibersPublished by Institute of Electrical and Electronics Engineers (IEEE) ,2002
- Creating large bandwidth line defects by embedding dielectric waveguides into photonic crystal slabsApplied Physics Letters, 2002
- Particle levitation and guidance in hollow-core photonic crystal fiberOptics Express, 2002
- Block-iterative frequency-domain methods for Maxwell's equations in a planewave basisOptics Express, 2001
- Analysis of air-guiding photonic bandgap fibersOptics Letters, 2000
- Single-Mode Photonic Band Gap Guidance of Light in AirScience, 1999
- Photonic Crystal Fibers: A New Class of Optical WaveguidesOptical Fiber Technology, 1999
- Surface electromagnetic waves in two-dimensional photonic crystals: Effect of the position of the surface planePhysical Review B, 1999
- Laser-Guided Atoms in Hollow-Core Optical FibersPhysical Review Letters, 1995