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Related Experiment Video

Updated: Jun 22, 2026

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
10:35

Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials

Published on: September 26, 2014

All solid photonic bandgap fiber based on an array of oriented rectangular high index rods.

A Wang, G J Pearce, F Luan

    Optics Express
    |June 17, 2009
    PubMed
    Summary

    We fabricated and modeled an all-solid photonic bandgap fiber (PBGF) using rectangular rods. Its bend losses depend on direction, explained by rod mode coupling and cladding states.

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    Last Updated: Jun 22, 2026

    Using Microwave and Macroscopic Samples of Dielectric Solids to Study the Photonic Properties of Disordered Photonic Bandgap Materials
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    Area of Science:

    • Photonics
    • Materials Science
    • Optical Fiber Technology

    Background:

    • Photonic bandgap fibers (PBGFs) offer unique light confinement properties.
    • Understanding mode behavior and loss mechanisms is crucial for PBGF applications.

    Purpose of the Study:

    • To fabricate, characterize, and model an all-solid PBGF with oriented rectangular rods.
    • To investigate the influence of bending on PBGF performance.

    Main Methods:

    • Fabrication of an all-solid PBGF structure.
    • Near-field pattern analysis to identify cladding modes and bandgap edges.
    • Modeling of directional coupling and density of states.

    Main Results:

    • Successful fabrication and characterization of the rectangular rod PBGF.
    • Identification of cut-off rod modes at bandgap edges through near-field imaging.
    • Demonstration that bend losses are direction-dependent.

    Conclusions:

    • The directional bend loss in PBGFs can be attributed to the coupling properties of rod modes.
    • The density of cladding states provides a framework for understanding bend loss phenomena in PBGFs.