Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Log inSign up
Challenges
Datasets
Workspaces
Papers
Discussions
Leaderboard
Blog
Job Board
Q3AS

© 2026 Aqora Quantum S.A.S.

TermsPrivacyLegal Notice

Conference on Lasers and Electro-Optics

Enhanced On-Chip Phase Measurement by Weak Value Amplification

Meiting Song, John Steinmetz, Yi Zhang, Juniyali Nauriyal, Marissa Granados-Baez, Andrew N. Jordan, Jaime Cárdenas

Published Jan 1, 2020• 1 citation
Publisher

Abstract

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.
DOI
10.1364/cleo_si.2020.sf3j.4

Related papers

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.

Nature Communications•Oct 29, 2021•30 citations

30dB Signal Enhancement by Integrated Weak Value Amplification

Yuhan Mei, Meiting Song, Andrew N. Jordan +1 more

We demonstrate a 30dB signal enhancement in the phase response of an on-chip weak value interferometer compared to a standard Mach-Zehnder interferometer paving the way to ultrahigh sensitivity in classical interferometry.

•Jan 1, 2025•0 citations

Amplification of Optical Pulse Delays using Weak Measurements

Mohammad Mirhosseini, Omar S. Magaña‐Loaiza, Mehul Malik +1 more

A novel scheme for super-sensitive measurement of optical pulse delays is proposed based on the concept of weak-value amplification. We discuss an experimental implementation of this technique utilizing a Mach-Zehnder interferometer.

The Rochester Conferences on Coherence and Quantum Optics and the Quantum Information and Measurement meeting•Jan 1, 2013•0 citations

Weak value amplification in an optomechanical system with mach-zehnder interferometer

Sergio Carrasco

•Nov 3, 2021•0 citations

Chip-based Photon Addition

K. Malinowski, Aswini Kumar Pattanayak, Amir Targholizadeh +5 more

We report the design of chip-based building blocks for a photon addition module where one or more photons are coherently added via stimulated emission to a weak source light signal to enhance the signal-to-noise ratio.

Quantum 2.0 Conference and Exhibition•Jan 1, 2025•0 citations

30 dB on-chip ultra-high inverse weak value amplification

Yuhan Mei, Meiting Song, Andrew Jordan +1 more

Weak value amplification (WVA) has emerged as a powerful technique that enhances measurement precision. However, traditional table-top WVA setups and on-chip demonstrations have not achieved an amplification over 20 dB. The practical limit of the amplification is the fidelity of photon post-selection. To address this limit, we design a weak value device with an over 30 dB interferometer extinction ratio, where the stray light in the dark port is minimized with thermally tunable phase shifters. As a result, the device successfully shows 30 dB WVA, termed ultra-high WVA. This WVA optimization strategy by improving interferometer extinction is extensible to a wide range of WVA-based detections, paving the way for their broader application in practical precision measurements.

Optics Letters•May 15, 2026•0 citations
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.
Weak value amplification (WVA) has emerged as a powerful technique that enhances measurement precision. However, traditional table-top WVA setups and on-chip demonstrations have not achieved an amplification over 20 dB. The practical limit of the amplification is the fidelity of photon post-selection. To address this limit, we design a weak value device with an over 30 dB interferometer extinction ratio, where the stray light in the dark port is minimized with thermally tunable phase shifters. As a result, the device successfully shows 30 dB WVA, termed ultra-high WVA. This WVA optimization strategy by improving interferometer extinction is extensible to a wide range of WVA-based detections, paving the way for their broader application in practical precision measurements.