Archivio Istituzionale della RicercaWe report on how external cavity III-V/SiN hybrid lasers operate in regimes of ultra-damped relaxation oscillations or in CW unstable dynamical regimes (self-pulsing or approaching turbulence) as a consequence of mirror dispersion, non-zero linewidth enhancement factor, and four-wave mixing in the gain medium. The impact of the dispersive mirror bandwidth and different mirror effective lengths on the laser tolerance to external optical feedback is also discussed.
CW Emission and Self-Pulsing in a III-V/SiN Hybrid Laser With Narrow Band Mirror / Rimoldi, Cristina; Columbo, Lorenzo L.; Bovington, Jock; Romero-Garcia, Sebastian; Gioannini, Mariangela. - In: IEEE PHOTONICS JOURNAL. - ISSN 1943-0655. - ELETTRONICO. - 14:4(2022), pp. 1-7. [10.1109/JPHOT.2022.3188202]
CW Emission and Self-Pulsing in a III-V/SiN Hybrid Laser With Narrow Band Mirror
Cristina Rimoldi;Lorenzo L. Columbo;Mariangela Gioannini
2022
Abstract
We report on how external cavity III-V/SiN hybrid lasers operate in regimes of ultra-damped relaxation oscillations or in CW unstable dynamical regimes (self-pulsing or approaching turbulence) as a consequence of mirror dispersion, non-zero linewidth enhancement factor, and four-wave mixing in the gain medium. The impact of the dispersive mirror bandwidth and different mirror effective lengths on the laser tolerance to external optical feedback is also discussed.
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https://hdl.handle.net/11583/2971855