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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
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Microwave Photonic Fiber Ring Resonator
1Research Center for Optical Fiber Sensing, Zhejiang Laboratory, Hangzhou 311100, China.
Sensors (Basel, Switzerland)
|May 28, 2022
Summary
A novel microwave photonic (MWP) fiber ring resonator was developed. This MWP sensor shows potential for detecting macro-bending and strain changes with high accuracy.
Area of Science:
- Optoelectronics
- Microwave Photonics
- Fiber Optic Sensing
Background:
- Microwave photonic (MWP) devices are crucial for integrated systems.
- Fiber ring resonators offer unique spectral properties.
- Sensing applications require sensitive and robust optical devices.
Purpose of the Study:
- Introduce a new concept for an MWP fiber ring resonator.
- Characterize its transmission spectra in the microwave domain.
- Demonstrate its potential as an optical fiber sensor.
Main Methods:
- Fabrication and characterization of the MWP fiber ring resonator.
- Measurement of complex transmission spectra (magnitude and phase).
- Experimental demonstration of macro-bending and strain sensing capabilities.
Main Results:
- Multiple resonance peaks observed in the magnitude spectrum.
- Rapid phase variations (enhanced group delay) near resonance confirmed.
- Successful experimental sensing of macro-bending and fiber length changes.
Conclusions:
- The proposed MWP fiber ring resonator exhibits distinct spectral characteristics.
- The device shows significant potential for practical optical fiber sensing applications.
- Experimental findings align well with theoretical predictions, validating the concept.
