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Amplification of rotation velocity using weak measurements in Sagnac’s interferometer

Jing-Hui Huang, Xue-Ying Duan, Xiangyun Hu

arXiv:2101.00857The European Physical Journal DMar 1, 202113 citations

Weak Value Measurement of an Optical Beam Deflection in Image Rotating Sagnac Interferometer

박상준, 김형주, 노재우

Sep 1, 20120 citations

Enhanced on-chip phase measurement by inverse weak value amplification

Meiting Song, John Steinmetz, Yi Zhang +4 more

Optical interferometry plays an essential role in precision metrology such as in gravitational wave detection, gyroscopes, and environmental sensing. Weak value amplification enables reaching the shot-noise-limit of sensitivity, which is difficult for most optical sensors, by amplifying the interferometric signal without amplifying certain technical noises. We implement a generalized form of weak value amplification on an integrated photonic platform with a multi-mode interferometer. Our results pave the way for a more sensitive, robust, and compact platform for measuring phase, which can be adapted to fields such as coherent communications and the quantum domain. In this work, we show a 7 dB signal enhancement in our weak value device over a standard Mach-Zehnder interferometer with equal detected optical power, as well as frequency measurements with 2 kHz sensitivity by adding a ring resonator.Optical interferometry plays an essential role in precision metrology such as in gravitational wave detection, gyroscopes, and environmental sensing. Weak value amplification enables reaching the shot-noise-limit of sensitivity, which is difficult for most optical sensors, by amplifying the interferometric signal without amplifying certain technical noises. We implement a generalized form of weak value amplification on an integrated photonic platform with a multi-mode interferometer. Our results pave the way for a more sensitive, robust, and compact platform for measuring phase, which can be adapted to fields such as coherent communications and the quantum domain. In this work, we show a 7 dB signal enhancement in our weak value device over a standard Mach-Zehnder interferometer with equal detected optical power, as well as frequency measurements with 2 kHz sensitivity by adding a ring resonator.

Nature CommunicationsOct 29, 202130 citations

Weak Value Measurement of an Optical Beam Deflection in Image Rotating Sagnac Interferometer

Sang‐Joon Park, Hyoung Joo Kim, Jaewoo Noh

We measured small optical beam deflection in an image rotating Sagnac interferometer. We used a weak value measurement scheme that involves a pre-selection, weak perturbation, and a post-selection procedure to obtain the amplified value of beam deflection. The amplification factor of the measured beam deflection varied from 11 to 63 depending on the settings of the post-selection polarizer in front of the photodetector and the settings of polarization compensator in the interferometer.

Journal of the Optical Society of KoreaSep 25, 20122 citations

Amplification of Angular Rotations using Weak Measurements

Omar S. Magaña‐Loaiza, Mohammad Mirhosseini, Brandon Rodenburg +1 more

We experimentally demonstrate the first weak-value amplification of the azimuthal degree of freedom. We estimate rotations using shifts in angular position and orbital angular momentum, via spin-orbit coupling and an applied geometric phase.

Frontiers in OpticsJan 1, 201416 citations

Enhanced On-Chip Phase Measurement by Weak Value Amplification

Meiting Song, John Steinmetz, Yi Zhang +4 more

We show, for the first time, phase measurement with weak value amplification on an integrated photonic chip. We demonstrate 9 dB of signal enhancement over a standard on-chip Mach-Zehnder interferometer with equal detected optical power.

Conference on Lasers and Electro-OpticsJan 1, 20201 citation

Integrated optical gyroscope with inverse weak value amplification

Abstract

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Integrated optical gyroscope with inverse weak value amplification

Abstract

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