A5063104915- Photonic Crystal and Fiber Optics
- Semiconductor Lasers and Optical Devices
- CCD and CMOS Imaging Sensors
- Infrared Target Detection Methodologies
- Glass properties and applications
- Semiconductor Quantum Structures and Devices
- Solid State Laser Technologies
- Spectroscopy and Laser Applications
- Radiation Effects in Electronics
- Advanced Semiconductor Detectors and Materials
- Photonic and Optical Devices
- Laser Design and Applications
- Optical Network Technologies
- Photocathodes and Microchannel Plates
- Radiation Detection and Scintillator Technologies
- Advanced Fiber Optic Sensors
- Calibration and Measurement Techniques
- Ocular and Laser Science Research
- Particle Detector Development and Performance
- Laser-induced spectroscopy and plasma
- Advanced Fiber Laser Technologies
- Optical Wireless Communication Technologies
- Planetary Science and Exploration
- Laser-Matter Interactions and Applications
- Laser Material Processing Techniques
Centre National d'Études Spatiales
2009-2023
Polytechnic University of Bari
2017
European Space Agency
2010-2015
Ball (France)
2014
National Superconducting Cyclotron Laboratory
2014
Michigan State University
2014
Moscow Engineering Physics Institute
2014
Laboratoire d'Analyse et d'Architecture des Systèmes
2006-2008
Université de Toulouse
2007-2008
Université Toulouse III - Paul Sabatier
2008
In this topical review, the recent progress on radiation-hardened fiber-based technologies is detailed, focusing examples for space applications. first part of we introduce operational principles various considered use in radiation environments: passive optical fibers data links, diagnostics, active amplifiers and laser sources as well different classes point distributed fiber sensors: gyroscopes, Bragg gratings, Rayleigh, Raman or Brillouin-based sensors. Second, describe state art...
Abstract On the NASA 2020 rover mission to Jezero crater, remote determination of texture, mineralogy and chemistry rocks is essential quickly thoroughly characterize an area optimize selection samples for return Earth. As part Perseverance payload, SuperCam a suite five techniques that provide critical complementary observations via Laser-Induced Breakdown Spectroscopy (LIBS), Time-Resolved Raman Luminescence (TRR/L), visible near-infrared spectroscopy (VISIR), high-resolution color imaging...
We present a new structure for erbium-doped optical fibers [hole-assisted carbon-coated, (HACC)] that, combined with an appropriate choice of codopants in the core, strongly enhances their radiation tolerance. built fiber amplifier based on this HACC and characterize its degradation under γ-ray doses up to 315 krad (SiO2) ON mode. The 31 dB is practically insensitive, gain change merely -2.2×10(-3) dB/krad. These performances authorize use doped amplifiers various applications environments...
In this work, we developed and exploited simulation tools to optimize the performances of rare earth doped fiber amplifiers (REDFAs) for space missions. To describe these systems, a state-of-the-art model based on rate equations particle swarm optimization technique is in which also consider main radiation effect REDFA: induced attenuation (RIA). After validation tool set by confrontation between theoretical experimental results, investigate how deleterious effects amplifier performance can...
The radiation responses of different high-power erbium/ytterbium-codoped fiber amplifiers (HP-EYDFA) have been investigated up to 100 krad (SiO2) dose levels. These devices are able deliver 20 W signal output power at 1565 nm by pumping 915 (43 W) tolerant (Er/Yb) or hardened (ErYbCe) active few mode fibers; these performances needed for free-space communications between low-orbit satellites and ground transceivers. X-ray irradiation results show that, thanks a positive influence the photo-...
We investigated the behavior of a new class erbium-doped fiber amplifier (EDFA) when exposed to 63 MeV protons. The EDFA is designed with radiation hardened hole-assisted carbon coated (HACC) Er <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">3 +</sup> -doped optical fiber. particular structure this HACC allows permanently incorporate an optimal amount D <sub xmlns:xlink="http://www.w3.org/1999/xlink">2</sub> or H gases into its core, reducing...
In this paper, a compendium of InGaAs photodiode irradiation test results is presented. These photodiodes were irradiated either with γ-rays, protons, neutrons, electrons, pions, alpha particles, or carbon ions various energies. The displacement damage dose formalism was found to be effective in describing the radiation-induced dark current increase any studied photodiodes. exploitation capacitancebias voltage and current-bias measurements also allows us deduce factor that can used assess...
In this paper, we present a multiphysics modeling of rare earth-doped cladding-pumped fiber amplifiers to predict the device performance with respect constraints associated space missions. By combining 3-D nonhomogeneous heat conduction equation nonlinear rate equations, developed numerical algorithm makes possible calculation spatial distribution different optical signals and temperature profiles. The dependence refractive index, emission, absorption cross sections, as well radiation...
This paper presents the analysis of CoRoT CCDs dark current degradation measured during more than 2.5 years in orbit. Starting from on-ground irradiation results obtained space qualification detectors, a model is proposed to calculate in-orbit pixel distribution (including hot pixels one). The modeling are found be good agreement with in-flight data. We therefore use this extrapolate evolution signal beyond years. primary interest context mission duration extension 6 for mission.
Commercial Off-The-Shelf Charge Coupled Devices were irradiated with protons at energies ranging from 17 MeV to 200 MeV. Evolution of the dark current distribution during irradiation is discussed. A general method presented predict increase both mean and associated non-uniformity after a monoenergetic proton irradiation. The results are found be in good agreement experimental outputs. model then used assess signal degradation device exposed multienergetic beam. Again, predictions shown...
This paper presents for the first time impact of cryogenic temperatures, down to 77 K, on SEU sensitivity D-Flip-Flop (DFF) infrared image sensor. Estimations and a failure analysis at circuit level are presented investigated considering stored data configuration temperature. The comparisons with experimental obtained under heavy ion UCL consistent. A good correlation cross sections is revealed. saturation effect observed below 200 K.
This paper presents the CNES analysis of CCD dark current degradation in orbit. For first time, data coming from several detectors orbit have been collected and congregated to extract general trends about in-flight detector behaviours. The in-orbit is therefore compared on-ground prediction for each detector. work has done collaboration with detection subsystem office, image quality office components & environment effects office.
Dark current evolution in Charge Coupled Devices (CCD) is experimentally studied with Co-60 and proton irradiations. Linear CCDs are irradiated various static dynamic bias conditions. Annealing effects discussed on-ground data compared to in-flight data. Presented results on ionization-induced dark increase have demonstrated the impact of sensor operational conditions dose rate, revealing an ELDRS-like effect.
InGaAs material has a natural cutoff wavelength of 1.65µm so it is naturally suitable for detection in Short Wavelength InfraRed (SWIR) spectral range. Regarding Earth Observation Spacecraft missions this range can be used the CO2 concentration measurements atmosphere. CNES (French Space agency) studying new mission, Microcarb with band centered on 1.6µm wavelength. detector looks attractive space application because its low dark current allows high temperature operation, reducing by way...
The radiation tolerance of a 0.18 μm technology CMOS commercial image sensor has been evaluated with Co <sup xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink">60</sup> and proton irradiations. effects protons on the hot pixels dynamic bias duty cycle conditions during gamma irradiations are studied.
We present a new class of Erbium-doped optical fibers: the Hole-Assisted Carbon-Coated, HACC fibers. Optical fibers with this particular structure have been made by iXFiber on basis an appropriate choice codopants in their core and claddings. By using additional pre-treatment deuterium (D2) loading authorized structure, we highlight efficiency such components demonstrated that type fiber presents strongly enhanced radiation resistance compared to other types erbium-doped studied litterature....
Quantum dash lasers were irradiated for the first time, using 31-MeV protons. These novel structures, which show promising performances 1.55 mum optical communications exhibit better robustness to radiation than quantum well lasers.
Rare-earth doped optical fibers (REDF, Er or Er/Yb-doped) are a key component in laser sources (REDFS) and amplifiers (REDFA). The high performances of these fiber-based systems made them as promising solution part gyroscopes, telecommunication systems… However, REDFs very sensitive to space radiations, so their degradation limits integration long term missions. To overcome this issue, several studies were carried out some innovations at the level proposed by our group such Cerium co-doping...
The temperature dependence of the emission and absorption cross sections Er Yb ions in rare-earth-doped aluminosilicate optical fibers is experimentally investigated. obtained results demonstrate that McCumber theory accurately predicts temperature-induced changes section spectrum up to 500 °C when spectra measured at considered used for calculations instead one acquired ambient temperature. Finally, we also various heating steps are not affecting fiber guiding properties no permanent effect...
This paper presents a new concept of frequency comb LIDAR instrument for atmospheric CO<sub>2</sub> mapping. The French space agency (CNES) has initiated the development an airborne proof concept. main originality this lies in use two probe combs crossing same path and used self-phase correction. technique, named Double Heterodyne Detection (DHD), allows us to coherently average interferograms beyond coherence time laser source. is designed real-conditions measurements at 1.572 μm mainly...