Continuous-wave squeezed states of light via ‘up-down’ self-phase modulation

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dc.identifier.uri Singh, Amrit Pal Ast, Stefan Mehmet, Moritz Vahlbruch, Henning Schnabel, Roman 2021-02-24T10:00:39Z 2021-02-24T10:00:39Z 2019
dc.identifier.citation Singh, A.P.; Ast, S.; Mehmet, M.; Vahlbruch, H. et al.: Continuous-wave squeezed states of light via ‘up-down’ self-phase modulation. In: Optics Express 27 (2019), Nr. 16, S. 22408-22418. DOI:
dc.description.abstract Continuous-wave (cw) squeezed states of light have applications in sensing, metrology and secure communication. In recent decades their efficient generation has been based on parametric down-conversion, which requires pumping by externally generated pump light of twice the optical frequency. Currently, there is immense effort in miniaturizing squeezed-light sources for chip-integration. Designs that require just a single input wavelength are favored since they offer an easier realization. Here we report the first observation of cw squeezed states generated by self-phase modulation caused by subsequent up and down conversions. The wavelengths of input light and of balanced homodyne detection are identical, and 1550 nm in our case. At sideband frequencies around 1.075 GHz, a nonclassical noise reduction of (2.4 ± 0.1) dB is observed. The setup uses a second-order nonlinear crystal, but no externally generated light of twice the frequency. Our experiment is not miniaturized, but might open a route towards simplified chip-integrated realizations. © 2019 Optical Society of America under the terms of the OSA Open Access Publishing Agreement eng
dc.language.iso eng
dc.publisher Washington, DC : OSA - The Optical Society
dc.relation.ispartofseries Optics Express 27 (2019), Nr. 16
dc.rights OSA Open Access Publishing Agreement
dc.subject Light sources eng
dc.subject Noise abatement eng
dc.subject Optical frequency conversion eng
dc.subject Balanced homodyne detection eng
dc.subject Chip integration eng
dc.subject Continuous Wave eng
dc.subject Continuous waves eng
dc.subject Nonlinear crystals eng
dc.subject Optical frequency eng
dc.subject Parametric down conversion eng
dc.subject Sideband frequency eng
dc.subject Self phase modulation eng
dc.subject.ddc 530 | Physik ger
dc.title Continuous-wave squeezed states of light via ‘up-down’ self-phase modulation
dc.type Article
dc.type Text
dc.relation.issn 1094-4087
dc.bibliographicCitation.issue 16
dc.bibliographicCitation.volume 27
dc.bibliographicCitation.firstPage 22408
dc.bibliographicCitation.lastPage 22418
dc.description.version publishedVersion
tib.accessRights frei zug�nglich

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    Frei zugängliche Publikationen aus An-Instituten der Leibniz Universität Hannover

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