19 September 2023
Two-mode squeezed light can surpass shot noise limit in optical sensors
Micro-ring resonators enable squeezed light generation on photonic chips
10x sensitivity gains are predicted for compact, low-loss interferometers
Performance gains drop off rapidly as sensor size & losses increase
Most promising for chip-integrated gyroscopes and accelerometers
Two-mode squeezed light improves chip-integrated optical sensors
This paper analyzes using two-mode squeezed light generated by four-wave mixing in a micro-ring resonator to enhance the sensitivity of chip-integrated optical sensors like Mach-Zehnder interferometers. The authors derive equations to model the squeezing and use them to show over 10x sensitivity gains are possible for compact, low-loss sensors. However, losses limit the advantage for larger sensors.
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