Abstract
In this work, we present an alternative approach to angular velocity optical sensing based on two-ring resonators. This configuration admits the use of a standard laser diode source (, 10,000 MHz, FWHM) reaching higher sensitivities when narrow spectral laser sources (, FWHM) are used. We compare this configuration with the standard single-ring resonator angular rate sensor (SRARS), which must use a narrow laser at input. Finally, we conclude that the sensitivity of this new approach can also be enhanced by coupling high-power broadband laser sources in a large range (from to ), reaching performance similar to that of a standard SRARS configuration.
© 2011 Optical Society of America
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