Development of a Chip-Scale Optical Gyroscope with Weak Measurement Amplification Readout

TL;DR

This paper presents an integrated optical chip design for a highly sensitive optical gyroscope that uses weak measurement amplification to significantly improve rotation detection accuracy and noise performance.

Contribution

The paper introduces a novel integrated optical gyroscope design employing weak measurement amplification to enhance sensitivity and noise reduction compared to traditional setups.

Findings

Minimum detectable rotation rate of 0.1 deg/hr

Allan deviation of 0.08 deg/hr under ideal conditions

Signal-to-noise ratio improved by over ten times

Abstract

The design of an integrated optical chip is proposed containing a rotation sensing ring resonator (optical gyroscope) coupled to an inverse weak value amplified Sagnac interferometer that amplifies the signal containing the phase information. We show that, for conservative parameter choices, our setup has a minimum detectable angular rotation rate of 0.1 deg/hr and an Allan deviation of 0.08 deg/hr under expected ideal conditions. We also show that for an appropriate amount of input power, our design can improve the signal-to-noise ratio, the precision of angular rotation rate, and error in detection by more than ten times compared to a Sagnac interferometer coupled to a ring resonator.