---
_id: '40371'
abstract:
- lang: eng
  text: <jats:p>Multimode integrated interferometers have great potential for both
    spectral engineering and metrological applications. However, the material dispersion
    of integrated platforms constitutes an obstacle that limits the performance and
    precision of such interferometers. At the same time, two-colour nonlinear interferometers
    present an important tool for metrological applications, when measurements in
    a certain frequency range are difficult. In this manuscript, we theoretically
    developed and investigated an integrated multimode two-colour SU(1,1) interferometer
    operating in a supersensitive mode. By ensuring the proper design of the integrated
    platform, we suppressed the dispersion, thereby significantly increasing the visibility
    of the interference pattern. The use of a continuous wave pump laser provided
    the symmetry between the spectral shapes of the signal and idler photons concerning
    half the pump frequency, despite different photon colours. We demonstrate that
    such an interferometer overcomes the classical phase sensitivity limit for wide
    parametric gain ranges, when up to 3×104 photons are generated.</jats:p>
article_number: '552'
author:
- first_name: Alessandro
  full_name: Ferreri, Alessandro
  last_name: Ferreri
- first_name: Polina R.
  full_name: Sharapova, Polina R.
  id: '60286'
  last_name: Sharapova
citation:
  ama: Ferreri A, Sharapova PR. Two-Colour Spectrally Multimode Integrated SU(1,1)
    Interferometer. <i>Symmetry</i>. 2022;14(3). doi:<a href="https://doi.org/10.3390/sym14030552">10.3390/sym14030552</a>
  apa: Ferreri, A., &#38; Sharapova, P. R. (2022). Two-Colour Spectrally Multimode
    Integrated SU(1,1) Interferometer. <i>Symmetry</i>, <i>14</i>(3), Article 552.
    <a href="https://doi.org/10.3390/sym14030552">https://doi.org/10.3390/sym14030552</a>
  bibtex: '@article{Ferreri_Sharapova_2022, title={Two-Colour Spectrally Multimode
    Integrated SU(1,1) Interferometer}, volume={14}, DOI={<a href="https://doi.org/10.3390/sym14030552">10.3390/sym14030552</a>},
    number={3552}, journal={Symmetry}, publisher={MDPI AG}, author={Ferreri, Alessandro
    and Sharapova, Polina R.}, year={2022} }'
  chicago: Ferreri, Alessandro, and Polina R. Sharapova. “Two-Colour Spectrally Multimode
    Integrated SU(1,1) Interferometer.” <i>Symmetry</i> 14, no. 3 (2022). <a href="https://doi.org/10.3390/sym14030552">https://doi.org/10.3390/sym14030552</a>.
  ieee: 'A. Ferreri and P. R. Sharapova, “Two-Colour Spectrally Multimode Integrated
    SU(1,1) Interferometer,” <i>Symmetry</i>, vol. 14, no. 3, Art. no. 552, 2022,
    doi: <a href="https://doi.org/10.3390/sym14030552">10.3390/sym14030552</a>.'
  mla: Ferreri, Alessandro, and Polina R. Sharapova. “Two-Colour Spectrally Multimode
    Integrated SU(1,1) Interferometer.” <i>Symmetry</i>, vol. 14, no. 3, 552, MDPI
    AG, 2022, doi:<a href="https://doi.org/10.3390/sym14030552">10.3390/sym14030552</a>.
  short: A. Ferreri, P.R. Sharapova, Symmetry 14 (2022).
date_created: 2023-01-26T13:54:00Z
date_updated: 2025-12-16T11:27:11Z
department:
- _id: '15'
- _id: '569'
- _id: '170'
- _id: '429'
- _id: '230'
- _id: '9'
- _id: '27'
doi: 10.3390/sym14030552
intvolume: '        14'
issue: '3'
keyword:
- Physics and Astronomy (miscellaneous)
- General Mathematics
- Chemistry (miscellaneous)
- Computer Science (miscellaneous)
language:
- iso: eng
project:
- _id: '53'
  name: 'TRR 142: TRR 142'
- _id: '56'
  name: 'TRR 142 - C: TRR 142 - Project Area C'
- _id: '72'
  name: 'TRR 142 - C2: TRR 142 - Subproject C2'
- _id: '52'
  name: 'PC2: Computing Resources Provided by the Paderborn Center for Parallel Computing'
publication: Symmetry
publication_identifier:
  issn:
  - 2073-8994
publication_status: published
publisher: MDPI AG
status: public
title: Two-Colour Spectrally Multimode Integrated SU(1,1) Interferometer
type: journal_article
user_id: '16199'
volume: 14
year: '2022'
...