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Alternative configuration for an optical ring resonator angular rate sensor by using a standard laser diode.
Matias R Tejerina1, Gustavo A Torchia
1Centro de Investigaciones Ópticas Comisión Nacional de Investigaciones Científicas y Técnicas La Plata—Comisión de Investigaciones Científicas de la Provincia de Buenos Aires, Camino Centenario y 506 s/n Casilla de Correo no. 3, 1897 Gonnet, Pcia Buenos Aires, Argentina.
Applied Optics
|July 12, 2011
Summary
This study introduces a novel two-ring resonator for angular velocity optical sensing, achieving high sensitivity comparable to single-ring resonator angular rate sensors (SRARS) using standard laser sources.
Area of Science:
- Optics and Photonics
- Sensor Technology
- Angular Velocity Measurement
Background:
- Angular velocity sensors are crucial for navigation and control systems.
- Single-ring resonator angular rate sensors (SRARS) typically require narrow spectral laser sources for optimal performance.
- Existing methods present limitations in terms of laser source requirements and sensitivity.
Purpose of the Study:
- To present an alternative optical sensing approach for angular velocity using a two-ring resonator configuration.
- To compare the sensitivity and performance of the new approach with standard SRARS.
- To investigate the feasibility of using standard and broadband laser sources with the proposed sensor.
Main Methods:
- Development and analysis of a two-ring resonator optical sensor.
- Experimental comparison with a standard single-ring resonator angular rate sensor (SRARS).
- Utilizing both narrow spectral and high-power broadband laser sources for testing.
Main Results:
- The two-ring resonator configuration demonstrates higher sensitivity with standard laser diodes compared to narrow spectral sources.
- Performance comparable to standard SRARS was achieved using high-power broadband laser sources.
- The sensor operates effectively across a wide dynamic range (1°/h to 10,000°/h).
Conclusions:
- The proposed two-ring resonator offers a viable and sensitive alternative for angular velocity optical sensing.
- This approach relaxes the stringent laser source requirements of traditional SRARS.
- The sensor's adaptability to broadband sources enhances its practical applicability.
