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Mode-division-multiplexing of absorption-based fiber optical sensors
Optics Express
|November 3, 2017
Summary
This study introduces a novel fiber optic sensor network using few-mode fiber (FMF) and mode-division-multiplexing (MDM). This design achieves high sensitivity and large-scale multiplexing for advanced sensing applications.
Area of Science:
- Photonics and Optical Sensing
- Fiber Optic Technology
Background:
- Traditional single-mode fiber sensors face limitations in achieving both high sensitivity and large-scale multiplexing.
- Developing advanced fiber optic sensor networks is crucial for various monitoring applications.
Purpose of the Study:
- To theoretically investigate a quasi-distributed fiber optic sensor network.
- To explore the use of few-mode fiber (FMF) and mode-division-multiplexing (MDM) for enhanced sensing capabilities.
Main Methods:
- Utilizing a few-mode fiber (FMF) architecture.
- Employing mode-division-multiplexing (MDM) by separating signal transmission and sensing modes.
- Developing a matrix formalism for performance analysis.
Main Results:
- Demonstrated a sensor network design combining high sensitivity with large-scale multiplexing.
- Showcased the effectiveness of using a low-attenuation mode for transmission and a high-attenuation mode for sensing.
- Validated the feasibility of the proposed MDM sensor network.
Conclusions:
- The proposed FMF-MDM sensor network offers a significant advancement over traditional single-mode fiber systems.
- This approach provides a viable solution for achieving high-performance, large-scale fiber optic sensing networks.
