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Optically powered radio-over-fiber system based on center- and offset-launching techniques using a conventional
Optics Letters
|March 1, 2018
Summary
This study demonstrates improved radio-over-fiber (RoF) transmission using a 10-W power-over-fiber (PWoF) system. Combined center-launching and offset-launching techniques effectively mitigate dispersion and crosstalk in multimode fiber, extending link length to 4 km.
Area of Science:
- Optical Communications
- Fiber Optics Engineering
Background:
- Radio-over-fiber (RoF) systems are crucial for high-speed data transmission.
- Multimode fiber (MMF) presents challenges like modal dispersion and crosstalk.
- Efficient power delivery over fiber (PWoF) is essential for robust RoF deployments.
Purpose of the Study:
- To demonstrate RoF transmission with a 10-W PWoF using MMF.
- To mitigate modal dispersion and feed light crosstalk in MMF.
- To enhance RoF transmission performance and extend link length.
Main Methods:
- Utilized a combination of center-launching (CL) and offset-launching (OL) techniques.
- CL propagated feed light into lower-order modes.
- OL propagated optical data signals into higher-order modes and mitigated modal dispersion.
Main Results:
- Successfully demonstrated RoF transmission with 10-W PWoF over MMF.
- Effectively mitigated modal dispersion and feed light crosstalk.
- Achieved significant improvement in RoF transmission performance.
- Extended the RoF link length up to 4 km.
Conclusions:
- The combined CL and OL techniques are effective in overcoming MMF limitations for RoF systems.
- This approach enables robust and extended-reach RoF deployments with high power delivery.
- The study validates a practical solution for enhancing RoF transmission performance.
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