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Microwave Photonics Systems Based on Whispering-gallery-mode Resonators
Published on: August 5, 2013
Chirped area coupled resonator optical waveguide gyroscope
John R E Toland1, Zachary A Kaston, Christopher Sorrentino
1Department of Physics and Engineering Physics, Stevens Institute of Technology, Castle Point on Hudson, Hoboken, New Jersey 07030, USA. jtoland@stevens.edu
Optics Letters
|April 12, 2011
Summary
Chirping ring resonator sizes in a coupled resonator optical waveguide (CROW) enhances rotation sensitivity. This optical waveguide sensor leverages the Sagnac effect for improved performance in rotation detection.
Area of Science:
- Optics and Photonics
- Waveguide Optics
- Sensing Technologies
Background:
- Coupled resonator optical waveguides (CROWs) are used for light manipulation.
- The Sagnac effect in rotating systems influences optical fields.
- Sensitivity of optical sensors is crucial for precision measurements.
Purpose of the Study:
- To investigate optical field transmission through a rotating CROW with varying resonator sizes.
- To analyze the impact of symmetric integer wavelength chirps on rotation sensitivity.
- To enhance rotation sensing capabilities beyond uniform CROWs.
Main Methods:
- Utilized the transfer matrix method to model optical transmission.
- Calculated transmission as a function of inertial rotation rate (Ω).
- Focused on CROWs with chirped ring resonator circumferences.
Main Results:
- Observed oscillations in transmission dependent on the rotation rate Ω.
- Demonstrated that chirping increases the slope of transmission oscillations.
- Showcased enhanced rotation sensitivity compared to uniform CROWs.
Conclusions:
- Chirped CROWs offer superior rotation sensitivity due to increased transmission slope.
- This chirping technique provides a method to improve Sagnac effect-based rotation sensors.
- The findings enable the development of more sensitive optical rotation detection systems.
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