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Fabrication And Characterization Of Photonic Crystal Slow Light Waveguides And Cavities
Published on: November 30, 2012
Rotation sensing based on a slow-light resonating structure with high group dispersion
Chao Peng1, Zhengbin Li, Anshi Xu
1National Laboratory on Local Fiber-Optic Communication Networks and Advanced Optical Communication Systems, School of Electrical Engineering and Computer Science, Peking University, Peking, China. pengchao@pku.edu.cn
Applied Optics
|June 16, 2007
Summary
Investigating the Sagnac effect in slow-light media enhances rotation sensing. Slow-light resonator structures offer high sensitivity for navigation, with high group dispersion significantly boosting performance.
Area of Science:
- Optics and Photonics
- Sensor Technology
- Navigation Systems
Background:
- The Sagnac effect is fundamental to rotation sensing.
- Traditional Sagnac interferometers have limitations in sensitivity and size.
- Slow-light phenomena offer potential for enhanced sensor performance.
Purpose of the Study:
- To investigate the Sagnac effect in slow-light media and resonator structures.
- To explore the use of slow-light for relative motion sensing.
- To develop a highly sensitive absolute rotation sensor for navigation.
Main Methods:
- Theoretical analysis of the Sagnac effect in a slow-light medium.
- Modeling of slow-light resonator structures for rotation sensing.
- Numerical simulation of a folded loop-lattice-based resonator structure.
Main Results:
- Slow-light media can be used for relative motion sensing.
- Slow-light resonator structures are suitable for absolute rotation detection.
- High group dispersion significantly enhances rotation sensor sensitivity in resonating structures.
Conclusions:
- Slow-light technology provides a pathway to advanced rotation sensors.
- The proposed resonator design approach enables the development of sensitive navigation devices.
- Numerical simulations validate the concept of slow-light enhanced Sagnac sensors.
