Noise reduction in a dual-frequency VECSEL at telecom wavelength using fully correlated pumping

Hui Liu, Grégory Gredat, Syamsundar De, Ihsan Fsaifes, Aliou Ly, Rémy Vatré, Ghaya Baili, Sophie Bouchoule, Fabienne Goldfarb, Fabien Bretenaker

Research output: Chapter in Book/Report/Conference proceedingConference contributionpeer-review

Abstract

We demonstrate the noise reduction in a dual-frequency vertical-external-cavity surface-emitting laser at telecom wavelength using fully correlated pumping. A fully in-phase correlated pumping is obtained by polarization combining two single-mode fibered laser diodes in a single-mode fiber. With this pumping, ultra-low noises are observed, i. e. relative intensity noise lower than -140 dB/Hz, and beatnote phase noise suppression by 30 dB, getting close to the spontaneous emission limit. The generalized noise reduction is shown by modeling the beatnote phase noise spectra and relative intensity noise transfer gain depending on the in-phase correlation amplitude.

Original languageEnglish
Title of host publicationMWP 2018 - 2018 International Topical Meeting on Microwave Photonics
PublisherInstitute of Electrical and Electronics Engineers Inc.
ISBN (Electronic)9781538652268
DOIs
Publication statusPublished - 29 Nov 2018
Externally publishedYes
Event2018 International Topical Meeting on Microwave Photonics, MWP 2018 - Toulouse, France
Duration: 22 Oct 201825 Oct 2018

Publication series

NameMWP 2018 - 2018 International Topical Meeting on Microwave Photonics

Conference

Conference2018 International Topical Meeting on Microwave Photonics, MWP 2018
Country/TerritoryFrance
CityToulouse
Period22/10/1825/10/18

Keywords

  • correlation
  • dual-frequency laser
  • low noise
  • vertical-external-cavity surface-emitting laser

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