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Writing Bragg Gratings in Multicore Fibers
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Efficient group delay averaging in graded-index plastic optical fiber with microscopic heterogeneous core
Azusa Inoue1, Takafumi Sassa, Rei Furukawa
1Graduate School of Science and Technology, Keio University, 7-1 Shin-kawasaki, Saiwai-ku, Kawasaki 212-0032, Japan. inoue@kpri.keio.ac.jp
Optics Express
|August 14, 2013
Summary
Intrinsic mode coupling in plastic optical fibers (POF) enhances bandwidth by enabling random power transitions. This effect, driven by material properties and microbending, significantly improves fiber performance over shorter lengths compared to glass fibers.
Area of Science:
- Optics and Photonics
- Materials Science
Background:
- Plastic optical fibers (POF) are crucial for data transmission.
- Understanding mode coupling in graded-index POF (GI POF) is key to optimizing their bandwidth.
Purpose of the Study:
- Investigate intrinsic mode coupling in GI POF with heterogeneous cores.
- Analyze the impact of material properties and structural deformation on mode coupling.
- Quantify the bandwidth enhancement achieved through intrinsic mode coupling.
Main Methods:
- Developed and applied coupled power theory.
- Utilized numerical simulations for analysis.
- Focused on GI POF with microscopic heterogeneous cores.
Main Results:
- Intrinsic material properties induce random power transitions between guided modes.
- Microbending-induced structural deformation leads to nearest-neighbor coupling.
- Efficient group-delay averaging via intrinsic mode coupling significantly enhances bandwidth.
Conclusions:
- Intrinsic mode coupling is a critical factor for bandwidth enhancement in GI POF.
- GI POF exhibit superior bandwidth performance over shorter lengths due to intrinsic mode coupling compared to glass multimode fibers.
- The developed theory provides insights into managing mode coupling for improved optical fiber performance.
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