A5081974837- Photonic and Optical Devices
- Optical Network Technologies
- Semiconductor Lasers and Optical Devices
- Advanced Photonic Communication Systems
- Advanced Fiber Laser Technologies
- Advanced Fiber Optic Sensors
- Advanced Optical Network Technologies
- Silicon Carbide Semiconductor Technologies
- Multilevel Inverters and Converters
- CCD and CMOS Imaging Sensors
- Semiconductor materials and devices
- Laser Material Processing Techniques
- Infrared Target Detection Methodologies
- Sensor Technology and Measurement Systems
- Analytical Chemistry and Sensors
- Ocular and Laser Science Research
- Mechanical and Optical Resonators
- Induction Heating and Inverter Technology
- Phytoplasmas and Hemiptera pathogens
- Laser-Matter Interactions and Applications
- Semiconductor Quantum Structures and Devices
- Ion-surface interactions and analysis
- Quantum optics and atomic interactions
- Advanced Surface Polishing Techniques
- Advancements in Semiconductor Devices and Circuit Design
Laboratoire Plasma et Conversion d'Energie
2021-2022
Institut National de l'Énergie Solaire
2022
CEA LITEN
2021
Commissariat à l'Énergie Atomique et aux Énergies Alternatives
2021
Institut National Polytechnique de Toulouse
2021
École Nationale Supérieure d'Électrotechnique, d'Électronique, d'Informatique, d'Hydraulique et des Télécommunications
2021
Nokia (United States)
2002-2012
Alcatel Lucent (Germany)
2001-2011
Instituto Politécnico Nacional
2008
National Nuclear Energy Commission
2004-2005
We report the production of color centers in LiF single crystals by ultrashort high intensity laser pulses (60fs, 10 GW). An threshold for creation 2 TW/cm(2) was determined, which is slightly smaller than continuum generation threshold. could identify a large amount F that gave rise to aggregates such as F(2), F(2) (+) and F(3) (+). The proposed mechanism formation based on multiphoton excitation also produce short lived centers. It shown it possible write tracks with dimensional control.
The retiming and reshaping properties of a 160 Gbit/s all-optical wavelength converter based on semiconductor optical amplifier gating delay interferometer configuration is investigated. operation performed with as little −3.5 dBm input signal.
We present a planar lightwave circuit curved 2/spl times/2 coupler. Its splitting ratio has low sensitivity to wavelength, polarization, and fabrication yet is low-loss compact. simple formulae for its design. demonstrate 50/50 version in silica-on-silicon waveguides. discuss the tradeoff between amplitude accuracy phase such densensitized couplers.
A dynamic wavelength equalizer that can control attenuation at 22 points across 35 nm of spectrum in a smooth manner is presented. It achieves low loss (4.7 dB), because it consists Mach-Zehnder interferometer with wavelength-dependent element only one arm. Additional development needed to reduce the polarization sensitivity.
We present experimental investigations of the dynamical properties semiconductor optical amplifiers (SOAs) and their impacts in all-optical signal processing using SOAs. introduce ultrafast characterization techniques to fully characterize gain phase dynamics elucidate a consequence slow carrier recovery as pattern-dependent fluctuation wavelength conversion on-off -keyed signals. also analyze into amplitude limiting performance xor operation. Finally, differential phase-shift-keyed signals...
We have demonstrated an all-optical broadcast experiment in which a 10 Gbit/s RZ data signal is simultaneously converted into up to 8 different wavelengths. A single SOA with delay interferometer was used. Bit error rate measurements showed power penalty of less than 1.5 dB for configurations
A novel method of all-optical wavelength conversion DPSK signal is presented. We demonstrate 40-Gb/s signals with a large dynamic range input OSNR, and significant reduction phase fluctuations. (2 pages)
We present in 40-wavelength, 100-GHz channel spacing, programmable, planar add-drop filter that has flattened passbands without excess loss. For TE polarized light, the insertion loss is 9-11 dB for through channels, and dropping extinction ratio /spl ges/33 dB.
We demonstrate a 60-km CWDM-TDM PON with 40 Gb/s capacity both down and upstream. The system incorporates technologies such as volume manufacturable transmitters, burst-mode transmission, hybrid SOA-Raman amplifiers, cyclic CWDM multiplexer.
We report an 8/spl times/8 strictly nonblocking optical cross connect (OXC) using multimode imaging (MMI)-based generalized Mach-Zehnder (MZ) interferometers realized in the silica-on-silicon planar waveguide system. Employing a router-selector architecture, this MMI-MZ OXC design results significantly smaller device than conventional directional-coupler based implementations. An average insertion loss of 6 dB and crosstalk -34 dB, is demonstrated for OXC.
The authors demonstrate an integrated add-drop filter with true reconfigurability. It can drop any combination of eight wavelengths to ports, less than 7 dB loss. Its features are suitable for mass production: use standard silica waveguide technology, double-rejection switching and filtering all paths, compactness, power-efficient thermooptic switching.
We demonstrate a wavelength equalizer in planar silica waveguides that can automatically control individual channel powers 40-channel 100-GHz-channel-spacing wavelength-division multiplexed system, yet gives no distortion to channels already have the same power as their neighbors. It has <6.8 dB insertion loss over 32-nm, 9-13-dB attenuation range, and <0.18 polarization/time-dependent loss.
We demonstrate an extended reach 60 km coarse wavelength division multiplexing (CWDM)-time multiple access (TDMA) passive optical network (PON) with 40 Gb/s capacity for both down and upstream directions. The system leverages existing 10 TDMA PON technologies incorporates various subsystems such as volume manufacturable transmitters, a prototype burst-mode receiver, hybrid semiconductor amplifier-Raman amplifiers, cyclic CWDM multiplexer. confirm that this 32-user has sufficient power margin...
We present experimental results of an integrated 16-channel, 100-GHz-channel-spacing wavelength add-drop in silica. It consists two interleave-chirped waveguide grating routers connected by array waveguides containing thermooptic phase shifters. The fully packaged device has 6.6-7.6-dB fiber-to-fiber insertion loss and a switching extinction ratio >27 dB (>33 for single polarization) when used as add-drop, is compact, allowing at least four such devices per 5-in-diameter wafer.
A 16-channel 100-GHz-spacing wavelength selective cross connect is demonstrated using a combination of planar waveguides and MEMS piston-mirrors. Interswitch crosstalk eliminated switching speed an order magnitude faster than typical thermooptic switches. The power consumption smaller one microwatt per switch. An extinction ratio 20 dB insertion loss 10.6 are demonstrated.
An optimised ultra-low power thermo-optic waveguide switch design is presented. Under 25 mW consumption was achieved for standard index-contrast silica-on-silicon material with reduced polarisation-dependent switching performance.
We present an arrayed waveguide dynamic gain equalization filter with less than 4.5-dB insertion loss and greater 14-dB range over the C-band resulting from three improvements: a circulator polarization splitter combined into one, used to make device insensitive; segmentation in star coupler transition regions; exponential control wavelength distribution.
This paper describes the demonstration of an improved eight-channel coarse wavelength-division multiplexer. The fully packaged channel losses range from 2.3 to 3.9 dB, 1-dB bandwidth is 16.3 nm, and crosstalk <-28dB. silica-waveguide device could have very low cost.
An endless, reset-free polarization controller implemented with planar lightwave circuits using phase shifters for tuning is proposed and demonstrated. By avoiding the need tunable mode converters, simple fabrication processes a large range of material systems can be used, since neither electrooptic effect nor rotatable birefringence axis are necessary device operation. The proof concept demonstrated by implementing equivalent rotating waveplate Ge-doped silica-on-silicon waveguides...
We describe a wide range of reconfigurable optical add-drop multiplexer architecture designs that may be implemented in standard silica-on-silicon planar lightwave circuits. This proven, reliable technology offers high performance and cost-effective solutions for reducing complex service provisioning networks. Recent advances enable very flexible wavelength routing devices mesh- ring-based networks to on common subsystem integration platform. show excellent system at 10 Gb/s.
Highly versatile building blocks for polarization-mode dispersion (PMD) emulation and compensation are demonstrated using tunable all-pass filters fabricated in 4%-index-contrast planar waveguides. While the can approximate any phase response, complexity setting individual filter parameters is minimized by restricting responses to realize a range of differential delays, dispersion, slope. A single section first-order or higher-order PMD term emulate chromatic dispersion. group delay (DGD)...
We previously reported a simple 10-Gb/s Mach-Zehnder-interferometer-type tunable dispersion compensator that requires only one control voltage. However, we used an expensive polarization-diversity scheme to achieve polarization independence. Here, take advantage of the device symmetry and use single half-wave plate low sensitivity, saving significant cost size. demonstrate 200-km transmission chirped nonreturn-to-zero data with 1.8-dB path penalty.
Compact parallel transmitters and receivers with an aggregate capacity of 107 Gb/s are built through hybrid integration arrays ten 100-GHz spaced directly modulated lasers, avalanche photodiodes, high-index contrast silica arrayed waveguide grating multi- demultiplexers. Unamplified transmission over 75 km standard single-mode fiber 155-km amplified links is demonstrated in the C-band, by using a modulation format based on spectral offset filtering electronic dispersion compensation.
A 4 × strictly non-blocking optical cross-connect fabricated in silica-on-silicon waveguide technology using 1 MMI-based generalised Mach-Zehnder interferometers is reported. The loss of the switch 2.8 dB and average crosstalk 35 dB.
We integrated a wavelength-selective cross-connect, de-interleaver, interleaver, power combiner, and variable attenuators on one silica waveguide chip band demultiplexer, multiplexer, optical monitor another. These two chips are used to create an eight-channel add-drop node that is expandable up 80 channels with minimal traffic interruption by adding more of these chips.