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Updated: Jun 13, 2025
09:03
A Silicon-tipped Fiber-optic Sensing Platform with High Resolution and Fast Response
Published on: January 7, 2019
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Deep Integration of Fiber-Optic Communication and Sensing Systems Using Forward-Transmission Distributed Vibration
Runlong Zhu1,2, Xing Rao1,2, Shangwei Dai1,2
1Shenzhen Key Laboratory of Ultrafast Laser Micro/Nano Manufacturing, Guangdong and Hong Kong Joint Research Centre for Optical Fibre Sensors, Shenzhen University, Shenzhen 518060, China.
Sensors (Basel, Switzerland)
|September 14, 2024
Summary
This study demonstrates deep integration of fiber-optic communication and vibration sensing, enabling cost-effective ocean monitoring. The system allows simultaneous data transmission and vibration detection without performance compromise.
Area of Science:
- Optoelectronics
- Fiber-optic sensing
- Telecommunications
Background:
- Fiber-optic systems are crucial for communication and ocean monitoring.
- Integrating sensing into existing infrastructure offers cost-effective upgrades.
- Distributed fiber-optic vibration sensing (DFVS) is a key technology for monitoring.
Purpose of the Study:
- To demonstrate the deep integration of forward-transmission DFVS with an on-off keying (OOK) communication system.
- To show compatibility and assess performance impacts between communication and sensing functions.
- To validate the non-intrusive nature of integrated sensing for ocean activity monitoring.
Main Methods:
- Proof-of-concept demonstration of integrated fiber-optic communication and sensing.
- Utilizing existing fiber-optic cables, wavelength channels, and demodulation receivers for sensing.
- Employing an on-off keying (OOK) modulation scheme for data transmission.
Main Results:
- Achieved 150 Mb/s data transmission with a Bit Error Rate (BER) of 2.8 × 10-7 and a Q-factor of 14.1.
- Demonstrated distance, time, frequency, intensity, and phase-resolved vibration monitoring.
- Sensing achieved a Limit of Detection (LoD) of 8.3 pε/Hz1/2 at 1 kHz over 101.3 km.
Conclusions:
- Deep integration of DFVS and OOK communication is feasible without compromising performance.
- The integrated system offers a cost-effective solution for upgrading existing fiber-optic infrastructure for enhanced monitoring.
- This technology enables non-intrusive, high-performance sensing for diverse applications, including ocean activity monitoring.
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