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Related Experiment Video

Updated: Jul 8, 2026

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
13:02

Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation

Published on: February 25, 2017

Endlessly single-mode photonic crystal fiber.

T A Birks, J C Knight, P S Russell

    Optics Letters
    |July 1, 1997
    PubMed
    Summary

    Researchers developed an all-silica photonic crystal fiber with a hexagonal air hole array. This novel optical fiber is single mode across all wavelengths, with limitations due to bend loss at shorter and longer wavelengths.

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    Area of Science:

    • Photonics
    • Materials Science
    • Optical Engineering

    Background:

    • Photonic crystal fibers (PCFs) offer unique light-guiding properties.
    • All-silica PCFs are desirable for their compatibility with existing silica-based technologies.

    Purpose of the Study:

    • To design and analyze an all-silica optical fiber utilizing a two-dimensional photonic crystal structure.
    • To determine the single-mode operation characteristics of the proposed fiber design.

    Main Methods:

    • Fabrication of an all-silica optical fiber featuring a central core within a hexagonal array of micrometer-spaced air holes.
    • Application of an effective-index model to analyze the fiber's modal properties.

    Main Results:

    • The effective-index model confirms that the designed fiber can achieve single-mode operation for any wavelength.
    • The useful single-mode operating range is wide but is bounded by bend-loss edges at both short and long wavelengths.

    Conclusions:

    • The all-silica photonic crystal fiber demonstrates potential for broadband single-mode operation.
    • Bend loss is a critical factor limiting the operational bandwidth of this type of optical fiber.

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    Last Updated: Jul 8, 2026

    Fabrication of 1-D Photonic Crystal Cavity on a Nanofiber Using Femtosecond Laser-induced Ablation
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