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Updated: Jun 5, 2026

Writing Bragg Gratings in Multicore Fibers
Published on: April 20, 2016
Solid-core fiber with ultra-wide bandwidth transmission window due to inhibited coupling
Thomas Grujic1, Boris T Kuhlmey, Alexander Argyros
1Centre for Ultrahigh-bandwidth Devices for Optical Systems, School of Physics A28, The University of Sydney, NSW 2006, Australia.
Researchers created polymer photonic crystal fibers guiding light using inhibited coupling. These fibers show broad transmission windows, demonstrating potential for advanced optical applications.
Area of Science:
- Photonics and Optical Engineering
- Materials Science
Background:
- Photonic crystal fibers (PCFs) offer unique light-guiding properties.
- The inhibited coupling mechanism provides a route to broadband guidance in PCFs.
Purpose of the Study:
- To experimentally demonstrate solid-core photonic crystal fibers guiding light via inhibited coupling.
- To characterize the transmission properties and bandwidth of these novel polymer PCFs.
Main Methods:
- Fabrication of polymer solid-core PCFs with high-index ring-shaped inclusions.
- Experimental measurement of transmission windows and bandwidth.
- Comparison of experimental results with theoretical modeling.
Main Results:
- Demonstrated guidance via the inhibited coupling mechanism in polymer PCFs.
- Measured an overall transmission window exceeding one octave.
- Observed an uninterrupted transmission width of nearly one octave.
Conclusions:
- The demonstrated polymer PCFs exhibit broadband light guidance.
- The results align with theoretical predictions, validating the inhibited coupling model for such structures.
- These fibers hold promise for applications requiring wide spectral transmission.
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