Passively mode-locked high-frequency dual-VCSEL system

Tushar Malica, Krassimir Panajotov, Evgeny Avrutin, Marc Sciamanna

Research output: Contribution to journalArticlepeer-review


Two VCSELs placed facing each other with one biased chip while the second chip is unbiased is shown as a promising alternative to the popularly used conventional SESAM mode-locked VECSEL to generate mode-locked pulses. We propose a theoretical model using time-delay differential rate equations and numerically show that the proposed dual-laser configuration functions as a typical gain-absorber system. Parameter space defined by laser facet reflectivities and current are used to show general trends in the exhibited nonlinear dynamics and pulsed solutions.
Original languageEnglish
Pages (from-to)8296-8306
Number of pages11
JournalOptics Express
Issue number5
Publication statusPublished - 21 Feb 2023

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  • semiconductor lasers
  • Nonlinear Dynamics
  • optical feedback
  • synchronisation
  • polarisation

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