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Laboratoire Interdisciplinaire Carnot de Bourgogne

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Séminaire de Michelle Sander
Vendredi 14 Décembre 2018, 10:30

Le dr. Michelle Sander, de l'université de Boston, donnera un séminaire de 45 minutes, à 10h30, en salle D115.

Sa présentation s'intitule : 

Dynamics of femtosecond high repetition and multi-pulsing ultrafast fiber lasers

 

> Résumé du séminaire : 

Thulium fiber lasers operating in the eye-safe wavelength region from 1.7 µm to 2.2 µm are attractive for applications in gas/environmental sensing, biomedical diagnosis and surgery and nonlinear wavelength conversion in the mid-infrared. In this talk, various pathways to generate GHz repetition rate lasers and their underlying pulse dynamics are discussed. Nonlinear and polarization dynamics in femtosecond ultrafast lasers and novel pulse operating regimes will be presented: Based on vector soliton dynamics, a compact fiber laser with co-generated, orthogonally polarized interlaced pulses and coherent energy exchange will be demonstrated. Further, two turn-key, compact thulium fiber laser cavities will be presented where one offers self-organized multiple pulsing operation for low-noise high harmonic mode-locking. In the other case, transition dynamics lead to the generation of extreme events and chaotic transient states. With an optimized cavity design, high repetition rate laser systems with up to GHz femtosecond pulse operation directly from the laser cavity are achieved to enable high speed communication or optical sampling, frequency metrology and arbitrary waveform generation.

Séminaire de Michelle Sander

Vendredi 14 Décembre 2018 10:30

Le dr. Michelle Sander, de l'université de Boston, donnera un séminaire de 45 minutes, à 10h30, en salle D115.

Sa présentation s'intitule : 

Dynamics of femtosecond high repetition and multi-pulsing ultrafast fiber lasers

 

> Résumé du séminaire : 

Thulium fiber lasers operating in the eye-safe wavelength region from 1.7 µm to 2.2 µm are attractive for applications in gas/environmental sensing, biomedical diagnosis and surgery and nonlinear wavelength conversion in the mid-infrared. In this talk, various pathways to generate GHz repetition rate lasers and their underlying pulse dynamics are discussed. Nonlinear and polarization dynamics in femtosecond ultrafast lasers and novel pulse operating regimes will be presented: Based on vector soliton dynamics, a compact fiber laser with co-generated, orthogonally polarized interlaced pulses and coherent energy exchange will be demonstrated. Further, two turn-key, compact thulium fiber laser cavities will be presented where one offers self-organized multiple pulsing operation for low-noise high harmonic mode-locking. In the other case, transition dynamics lead to the generation of extreme events and chaotic transient states. With an optimized cavity design, high repetition rate laser systems with up to GHz femtosecond pulse operation directly from the laser cavity are achieved to enable high speed communication or optical sampling, frequency metrology and arbitrary waveform generation.

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