Academic Journal
Coupled-mode analysis of vertically-coupled AlGaAs/AlOx microdisk resonators
| العنوان: | Coupled-mode analysis of vertically-coupled AlGaAs/AlOx microdisk resonators |
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| المؤلفون: | Arlotti, Clément, Lafleur, Gael, Larrue, Alexandre, Calmon, Pierre-François, Arnoult, Alexandre, Almuneau, Guilhem, Gauthier-Lafaye, Olivier, Calvez, Stéphane |
| المساهمون: | Équipe Photonique (LAAS-PHOTO), Laboratoire d'analyse et d'architecture des systèmes (LAAS), Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT)-Université de Toulouse (UT)-Institut National des Sciences Appliquées - Toulouse (INSA Toulouse), Institut National des Sciences Appliquées (INSA)-Université de Toulouse (UT)-Institut National des Sciences Appliquées (INSA)-Université Toulouse - Jean Jaurès (UT2J), Université de Toulouse (UT)-Université Toulouse III - Paul Sabatier (UT3), Université de Toulouse (UT)-Centre National de la Recherche Scientifique (CNRS)-Institut National Polytechnique (Toulouse) (Toulouse INP), Université de Toulouse (UT)-Université Toulouse Capitole (UT Capitole), Université de Toulouse (UT), Service Techniques et Équipements Appliqués à la Microélectronique (LAAS-TEAM), CNES R et T: R-S13-LN-0001-025: Peignes de fréquences sur puce |
| المصدر: | ISSN: 0018-9197 ; IEEE Journal of Quantum Electronics ; https://laas.hal.science/hal-01741465 ; IEEE Journal of Quantum Electronics, 2018, 54 (3), ⟨10.1109/JQE.2018.2811739⟩. |
| بيانات النشر: | HAL CCSD Institute of Electrical and Electronics Engineers |
| سنة النشر: | 2018 |
| المجموعة: | Université Toulouse III - Paul Sabatier: HAL-UPS |
| مصطلحات موضوعية: | optical waveguide components, microresonators, integrated optics, coupled-mode analysis, [PHYS.PHYS.PHYS-OPTICS]Physics [physics]/Physics [physics]/Optics [physics.optics], [SPI.OPTI]Engineering Sciences [physics]/Optics / Photonic, [SPI.NANO]Engineering Sciences [physics]/Micro and nanotechnologies/Microelectronics |
| الوصف: | International audience ; This article reports the experimental and theoretical assessments of the optical characteristics of recently-introduced vertically-coupled microdisk resonators made by selective oxidation of AlGaAs multilayer structures. Experimental measurements show that the Q-factors are in the 10 3 to 10 4 range for diameters ranging from 75 to 300 µm. To establish the origins of this limited performance a coupled-mode-theory-based model of the single-access-waveguide-coupled resonator system was developed. It includes features which are specific to oxide-based vertically-coupled resonators, namely losses towards the slab waveguide lying under the resonator and a coupling region with an asymmetric and multilayer structure. Setting this simulation tool required the proposal and validation of a general criterion to select an appropriate set of decomposition permittivity profiles to be able to accurately model the characteristics of these more complex couplers using the coupled-mode-theory approach. This theoretical development is generic and can be now deployed to simulate any device which includes multi-waveguide couplers with arbitrary piece-wise-constant profile of the dielectric permittivity. Exploiting this particular development and experimental measurements of the disk sidewall roughness and of the coupling lengths, the calculated and experimental Q-factors are found to be in good agreement and allow establishing that the current performance is limited by the scattering losses and the slab-leakage losses for small-and large-diameter devices respectively. |
| نوع الوثيقة: | article in journal/newspaper |
| اللغة: | English |
| Relation: | hal-01741465; https://laas.hal.science/hal-01741465; https://laas.hal.science/hal-01741465/document; https://laas.hal.science/hal-01741465/file/Arlotti_JQE2018_AlGaAs_microdisk_simulation_main_text_v_accepted_authors.pdf |
| DOI: | 10.1109/JQE.2018.2811739 |
| الاتاحة: | https://laas.hal.science/hal-01741465 https://laas.hal.science/hal-01741465/document https://laas.hal.science/hal-01741465/file/Arlotti_JQE2018_AlGaAs_microdisk_simulation_main_text_v_accepted_authors.pdf https://doi.org/10.1109/JQE.2018.2811739 |
| Rights: | info:eu-repo/semantics/OpenAccess |
| رقم الانضمام: | edsbas.68C9B0E |
| قاعدة البيانات: | BASE |
| DOI: | 10.1109/JQE.2018.2811739 |
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