Gain-Switched Versus Regular Pulse Trains in a Semiconductor Laser with Optoelectronic Feedback

Authors :: Islam, Shariful
Kovalev, A.
Viktorov, E.
Locquet, A.
Citrin, D.
Georgia Tech Lorraine [Metz]
Université de Franche-Comté (UFC)
Université Bourgogne Franche-Comté [COMUE] (UBFC)-Université Bourgogne Franche-Comté [COMUE] (UBFC)-Ecole Supérieure d'Electricité - SUPELEC (FRANCE)-Georgia Institute of Technology [Atlanta]-CentraleSupélec-Ecole Nationale Supérieure des Arts et Metiers Metz-Centre National de la Recherche Scientifique (CNRS)
Source :: IEEE Photonics Technology Letters, IEEE Photonics Technology Letters, Institute of Electrical and Electronics Engineers, 2021, 33 (10), pp.491-494. ⟨10.1109/LPT.2021.3068327⟩
Publication Year :: 2021
Publisher :: HAL CCSD, 2021.
Abstract: International audience; Optoelectronic feedback on a laser diode is demonstrated to generate two distinct modes of pulse-train formation depending on the injection current J of the laser. For J close to the threshold current J th , the pulse repetition rate is the inverse of the loop delay. This behavior is attributed to feedback-induced gain-switching. In contrast, for J J th , the repetition rate is observed to be related to the relaxation-oscillation frequency f RO. The potential to generate pulse trains and associated microwave combs may find use in metrology, optical communications, sampling, and spectroscopy.

Subjects :: [SPI]Engineering Sciences [physics]
Semiconductor Laser
Optical pulses
education
Self-modulation
Optoelectronic feedback
Gain-switching

Language :: English
ISSN :: 10411135
Database :: OpenAIRE
Journal :: IEEE Photonics Technology Letters, IEEE Photonics Technology Letters, Institute of Electrical and Electronics Engineers, 2021, 33 (10), pp.491-494. ⟨10.1109/LPT.2021.3068327⟩
Accession number :: edsair.dedup.wf.001..cb3282ef8daef6e28209e4c43c8e888e
Full Text :: https://doi.org/10.1109/LPT.2021.3068327⟩

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