Absolute sensitivity of phase measurement in an SU(1,1) type interferometer

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review

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Author(s)

  • D. U. Wei
  • J. I.A. Jun
  • J. F. Chen
  • Z. Y. Ou
  • Weiping Zhang

Detail(s)

Original languageEnglish
Pages (from-to)1051-1054
Journal / PublicationOptics Letters
Volume43
Issue number5
Publication statusPublished - 1 Mar 2018
Externally publishedYes

Link(s)

DOI

DOI
Check@CityULib
Link to Scopus https://www.scopus.com/record/display.uri?eid=2-s2.0-85042911485&origin=recordpage
Permanent Link https://scholars.cityu.edu.hk/en/publications/publication(e7a2360b-a2e4-490f-9e34-540bb38a053e).html

Abstract

Absolute sensitivity is measured for the phase measurement in an SU(1,1) type interferometer, and the results are compared to that of a Mach–Zehnder interferometer operated under the condition of the same intra-interferometer intensity. The interferometer is phase locked to a point with the largest quantum noise cancellation, and a simulated phase modulation is added in one arm of the SU(1,1) interferometer. Both the signal and noise level are estimated at the same frequency range, and we obtained 3 dB improvement in sensitivity for the SU(1,1) interferometer over the Mach–Zehnder interferometer. Our results demonstrate a direct phase estimation and may pave the way for practical applications of a nonlinear interferometer.

Bibliographic Note

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Publication fingerprints text

100
sensitivity INIS
100
interferometers INIS
100
Interferometer Engineering
100
Absolute Sensitivit... Engineering
100
Measurement Engineering
100
Phase Measurement Keyphrases
100
SU(1,1) Keyphrases
50
Mach-Zehnder Interf... Keyphrases
50
SU(1,1) Interferome... Keyphrases
25
Noise Level Keyphrases
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Citation Format(s)

[ RIS ] [ BibTeX ]
Absolute sensitivity of phase measurement in an SU(1,1) type interferometer. / Wei, D. U.; Jun, J. I.A.; Chen, J. F. et al.
In: Optics Letters, Vol. 43, No. 5, 01.03.2018, p. 1051-1054.

Research output: Journal Publications and Reviews › RGC 21 - Publication in refereed journal › peer-review