Dissertation/ Thesis
Study of quantum dots for the realization of a coherent dual-frequency VECSEL ; Étude des boites quantiques pour la réalisation d’un laser VECSEL bi-fréquence cohérent
| Title: | Study of quantum dots for the realization of a coherent dual-frequency VECSEL ; Étude des boites quantiques pour la réalisation d’un laser VECSEL bi-fréquence cohérent |
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| Authors: | Brévalle, Gaëlle |
| Contributors: | Institut des Fonctions Optiques pour les Technologies de l'informatiON (Institut FOTON), Université de Rennes 1 (UR1), Université de Rennes (UNIV-RENNES)-Université de Rennes (UNIV-RENNES)-Centre National de la Recherche Scientifique (CNRS)-Institut National des Sciences Appliquées - Rennes (INSA Rennes), Institut National des Sciences Appliquées (INSA)-Université de Rennes (UNIV-RENNES)-Institut National des Sciences Appliquées (INSA)-IMT Atlantique Bretagne-Pays de la Loire (IMT Atlantique), Institut Mines-Télécom Paris (IMT)-Institut Mines-Télécom Paris (IMT)-École Nationale Supérieure des Sciences Appliquées et de Technologie (ENSSAT), Institut National des Sciences Appliquées - Rennes, Mehdi Alouini, Hervé Folliot |
| Source: | https://hal.archives-ouvertes.fr/tel-02893413 ; Optique [physics.optics]. Institut National des Sciences Appliquées - Rennes, 2019. Français. |
| Publisher Information: | HAL CCSD |
| Publication Year: | 2019 |
| Collection: | Archive ouverte HAL (Hyper Article en Ligne, CCSD - Centre pour la Communication Scientifique Directe) |
| Subject Terms: | VECSEL, InAs/InP quantum dots, dual-frequency laser, saturated absorption spectroscopy, SHB, coupling, boites quatiques InAs/InP, Lasers bifréquences, spectroscopie de stauration de l'absorption, couplage, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics] |
| Description: | This PhD work focuses on several experimental studies, allowing to relate the performances of a dual-frequency laser to the structural and physical properties of quantum dots (QDs). These works aim to develop a new kind of VECSEL (vertical external cavity surface emitting laser), integrating InAs/InP QDs emitting at 1.55 μm, in order to make tunable and robust (i.e. involving a weak coupling between the two modes) dual-frequency lasers. Firstly, a growth study of the QDs is realized. The control of the growth parameters ensures the control of the density and the inter-QDs distance, and thus of the electronic coupling. Following this study, the growth parameters are carefully selected to get high density QDs; then the stack of the QDs planes forming the active medium is realized. The next study allowing the quantification of the photonic coupling by the homogeneous broadening and the electronic coupling is performed in quantum wells, quantum dashes and quantum dots, depending on the temperature and the carriers density. For this, saturated absorption spectroscopy, based on the Spectral Hole Burning (SHB) phenomenon, is used. The results obtained are linked to the last study that addresses the coupling between the two modes of the dualfrequency VECSEL by the measurement of the Lamb coupling constant. This measurement is performed in a quatum well based VECSEL first, to calibrate the experimental setup and to get the value for comparisons with QDs. Finally, preliminary results obtained in multimode operation of QDs based VECSEL are presented. They reveal to be very promising for the achievement of a dualfrequency operation. ; Ce travail de thèse porte sur différentes études expérimentales permettant de lier les performances d’un laser bi-fréquence aux propriétés structurales et physiques des boites quantiques (BQs). L’objectif principal est de développer une nouvelle plateforme de lasers de type VECSEL (vertical external cavity surface emitting laser), intégrant des BQs InAs/InP émettant à 1,55 μm, afin de réaliser ... |
| Document Type: | doctoral or postdoctoral thesis |
| Language: | French |
| Relation: | tel-02893413; https://hal.archives-ouvertes.fr/tel-02893413; https://hal.archives-ouvertes.fr/tel-02893413/document; https://hal.archives-ouvertes.fr/tel-02893413/file/Manuscrit%20Gaelle%20Brevalle.pdf |
| Availability: | https://hal.archives-ouvertes.fr/tel-02893413 https://hal.archives-ouvertes.fr/tel-02893413/document https://hal.archives-ouvertes.fr/tel-02893413/file/Manuscrit%20Gaelle%20Brevalle.pdf |
| Rights: | info:eu-repo/semantics/OpenAccess |
| Accession Number: | edsbas.B7BFB4 |
| Database: | BASE |
| Description not available. |