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Acousto-optic interaction in polyimide coated optical fibers with flexural waves
Optics Express
|August 10, 2017
Summary
This study demonstrates acousto-optic coupling in polyimide-coated optical fibers using flexural waves. Despite elastic attenuation, efficient coupling was achieved, marking a first for robustly coated fibers.
Area of Science:
- Photonics and Wave Phenomena
- Materials Science
- Fiber Optics
Background:
- Acousto-optic (AO) coupling is crucial for modulating light in optical fibers.
- Protective coatings on optical fibers can impede AO interactions.
- Robust coatings are necessary for practical fiber optic applications.
Purpose of the Study:
- To demonstrate and analyze acousto-optic coupling in polyimide-coated single-mode optical fibers.
- To investigate the influence of the polyimide coating on the AO interaction.
- To assess the feasibility and efficiency of AO coupling in protected optical fibers.
Main Methods:
- Experimental demonstration of acousto-optic coupling using flexural elastic waves.
- Theoretical modeling of the acousto-optic interaction in coated fibers.
- Comparison of theoretical predictions with experimental outcomes.
Main Results:
- Successful demonstration of acousto-optic coupling in polyimide-coated single-mode optical fibers.
- Analysis revealed the effect of the polyimide coating on the AO interaction.
- Theoretical and experimental results showed good agreement.
- Reasonably good acousto-optic coupling efficiency was achieved despite significant elastic attenuation.
Conclusions:
- Acousto-optic coupling is achievable in optical fibers with robust polyimide coatings.
- The study provides the first experimental evidence of acousto-optic coupling in such protected fibers.
- This work paves the way for developing AO devices utilizing robustly coated optical fibers.
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