The future of Internet depends on meeting ever-increasing capacity needs while curbing the energy consumption's uncontrolled growth in data networks, especially in switching. Optics has a tremendous potential to solve these challenges, but the lack of practical optical buffers leaves optical packet switches vulnerable to contention, hindering their...
International audience
SYSIPHE is an airborne hyperspectral imaging system covering all atmospheric transmission bands from 0.4μm to 11.5μm: visible, NIR, SWIR, MWIR and LWIR. The ground sampling distance is 0.5m over a 500m swath, with higher resolution available in the visible and NIR. The imaging system, developed by Onera and Norsk Elektro Optikk, is flown on a Do-22...
Recent advances in the theoretical and experimental studies of Ge/SiGe quantum wells structures will be presented with a focus on optical telecommunication applications. Firstly, high-speed stand-alone Ge/SiGe QW electro-absorption modulators and photodetectors will be reported. It will be followed by the presentation of different methods for engin...
Performance analysis of an opto-electronic packet switch using combined SDM and WDM are presented. The simulations consider a switch connected to 7-core fibers. We point out the benefits of this configuration in various traffic distributions in terms of sustainable load, latency and energy savings for several packet classes
Racetrack micro-resonator (MR), made from partially or totally oxidized porous silicon (PS) ridge waveguides fabricated with standard photolithography process, is reported. The design and the technological process are described including a study of waveguide dimensions that provide single mode propagation. Scanning electronic microscopy observation...
International audience
Silicon is the mainstream material in the electronic industry and it is rapidly expanding its dominance into the field of photonics. Indeed, silicon photonics has been the subject of intense research activities to pave the way for next generation of energy-efficient high-speed computing, information processing and communications systems. The trend ...
Nous explorons l'effet de résonances parasites qui affectent les fonctions de transfert des chemins optiques dans les réseaux optiques sur puce avec une topologie d'architecture en anneau. Ces résonances engendrent une réduction de la bande passante du système, avec comme conséquence une augmentation des contraintes sur la stabilité des sources las...
Un laser à modes verrouillés est réalisé dans un objectif de multiplication de fréquence RF. La modélisation de ce laser permet, à partir des spectres optiques et RF, d’optimiser le système pour la génération d’une harmonique donnée.
