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Updated: Apr 5, 2026
09:19
Fabrication and Characterization of Disordered Polymer Optical Fibers for Transverse Anderson Localization of Light
Published on: July 29, 2013
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Anderson localization in a partially random Bragg grating and a conserved area theorem.
Optics Letters
|August 11, 2015
Summary
Partially disordered Bragg gratings exhibit conserved transmittance properties. Transmittance decays exponentially with layer number, revealing insights into disorder effects in optical systems.
Area of Science:
- Physics
- Optics
- Materials Science
Background:
- Bragg gratings are crucial optical components.
- Understanding disorder effects is key for device performance.
- Intermediate disorder regimes are less explored.
Purpose of the Study:
- Investigate disorder emergence in Bragg gratings.
- Identify critical properties of partially disordered gratings.
- Analyze transmittance behavior with increasing disorder.
Main Methods:
- Theoretical analysis of transmittance.
- Examination of reciprocal wavevector space.
- Modeling exponential decay with layer number.
Main Results:
- Logarithm of transmittance integral is conserved.
- Disorder redistributes transmittance across reciprocal space.
- Average transmittance shows exponential decay exp(-ηN) for large N.
Conclusions:
- Partially disordered Bragg gratings have predictable transmittance.
- Disorder's impact on transmittance is quantifiable.
- Findings have implications for optical device design.
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