Enhanced On-Chip Phase Measurement by Weak Value Amplification

Song, Meiting; Steinmetz, John; Zhang, Yi; Nauriyal, Juniyali; Jordan, Andrew N.; Cárdenas, Jaime

doi:10.1364/cleo_si.2020.sf3j.4

Cited by 1 publication

(2 citation statements)

References 3 publications

Supporting

Mentioning

Contrasting

Order By: Relevance

“…In this case F = I, so reading out the mode ratio is an optimal measurement. If instead we read out the mode displacement as in (17), we can treat P 0,1 = I L,R and take φ → 0, to obtain the Fisher information…”

Section: Quantum Fisher Informationmentioning

confidence: 99%

“…This particular design is inspired by a previous experiment using free space optics [15], but is implemented in an integrated optics environment. The design is a multi-mode Mach-Zehnder interferometer (MZI) [16,17] with a small mode perturbation which is coupled to the relative phase between arms. The output power is sorted such that all the information content is concentrated into a small fraction of the light, giving full precision with less light reaching the detector.…”

Section: Introductionmentioning

confidence: 99%

See 1 more Smart Citation

Precision frequency measurement on a chip using weak value amplification

Steinmetz¹,

Lyons²,

Song³

et al. 2019

Quantum Communications and Quantum Imaging XVII

Self Cite

View full text Add to dashboard Cite

We present an integrated design to precisely measure optical frequency using weak value amplification with a multi-mode interferometer. The technique involves introducing a weak perturbation to the system and then post-selecting the data in such a way that the signal is amplified without amplifying the technical noise, as has previously been demonstrated in a free-space setup. We demonstrate the advantages of a Bragg grating with two band gaps for obtaining simultaneous, stable high transmission and high dispersion. We numerically model the interferometer in order to demonstrate the amplification effect. The device is shown to have advantages over both the free-space implementation and other methods of measuring optical frequency on a chip, such as an integrated Mach-Zehnder interferometer.

show abstract

Section: Quantum Fisher Informationmentioning

confidence: 99%