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Published on: August 5, 2013
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Few-mode fibre-optic microwave photonic links
He Wen1,2, Hongjun Zheng1,3, Qi Mo4
1CREOL, The College of Optics and Photonics, University of Central Florida, Orlando, FL 32816, USA.
Light, Science & Applications
|September 1, 2018
Summary
Few-mode fibers enhance optical fiber power handling, improving microwave photonic link performance. This innovation bridges the power gap, enabling higher gain, lower noise, and better dynamic range.
Area of Science:
- Microwave photonics
- Optical fiber communications
Background:
- Fibre-optic microwave photonic links are fundamental components.
- Improving optical power at the receiver enhances link metrics like gain, noise figure, and dynamic range.
- Conventional optical fibers have limited power-handling capabilities compared to lasers and photodetectors.
Purpose of the Study:
- To propose and demonstrate the use of few-mode fibers to overcome the power-handling limitations of conventional optical fibers.
- To leverage the unique properties of few-mode fibers for improved microwave photonic link performance.
Main Methods:
- Utilizing specially designed few-mode fibers with small acousto-optic effective area and large optical mode effective areas.
- Exploiting spatial mode properties like orthogonality and walk-off.
- Demonstrating performance improvements for single-channel and multiplexed transmissions.
Main Results:
- Achieved order-of-magnitude improvements in microwave photonic link performance.
- Successfully bridged the optical power-handling gap using few-mode fibers.
- Demonstrated the potential for enhanced gain, noise figure, and dynamic range.
Conclusions:
- Few-mode fibers represent a significant advancement in microwave photonics.
- This work establishes the foundation for few-mode microwave photonics.
- Spatial degrees of freedom in few-mode fibers offer additional functionalities like tunable delays and lossless signal combining.
Keywords:
analogue optic-fibre linkfew-mode fibrefibre nonlinearitymicrowave photonicsspace-division multiplexingMore Related Videos
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