Simultaneous transition from continuous to pulsed and from PT-symmetric to PT-broken generation in coupled fiber lasers

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Abstract

We consider a system of coupled Raman fiber lasers which exhibit PT-symmetric or PT-broken symmetry properties depending on phase shifts between coupled cavities and pump power. We numerically study temporal properties of radiation of this system. We found that besides laminar and turbulent generation regimes of different PT-properties, the coupled lasers allows generation of pulses. The pulsed generation properties are varying from noise-like pulses to stable hundreds of ps-scale pulses depending on pump power and PT-symmetry of the system. We track the transitions between different pulsed regimes and also found that these regimes could co-exist at the same time.

Original languageEnglish
Title of host publicationNonlinear Optics and its Applications 2020
EditorsNeil G. R. Broderick, John M. Dudley, Anna C. Peacock
PublisherSPIE
ISBN (Electronic)9781510634886
DOIs
Publication statusPublished - 2020
EventNonlinear Optics and its Applications 2020 - Virtual, Online, France
Duration: 6 Apr 202010 Apr 2020

Publication series

NameProceedings of SPIE - The International Society for Optical Engineering
Volume11358
ISSN (Print)0277-786X
ISSN (Electronic)1996-756X

Conference

ConferenceNonlinear Optics and its Applications 2020
CountryFrance
CityVirtual, Online
Period06.04.202010.04.2020

Keywords

  • Laminar-turbulent transition
  • Parity-time symmetry
  • Raman fiber laser
  • Spatio-temporal dynamics

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