A5042253618- Optical Network Technologies
- Advanced Photonic Communication Systems
- Photonic and Optical Devices
- Semiconductor Lasers and Optical Devices
- Advanced Optical Network Technologies
- Advanced Fiber Optic Sensors
- Advanced Fiber Laser Technologies
- Optical Wireless Communication Technologies
- Quantum Information and Cryptography
- Advanced Wireless Communication Techniques
- Error Correcting Code Techniques
- Quantum Computing Algorithms and Architecture
- PAPR reduction in OFDM
- Radio Frequency Integrated Circuit Design
- Blind Source Separation Techniques
- Microwave Engineering and Waveguides
- Optical Coherence Tomography Applications
- Adaptive optics and wavefront sensing
- Quantum Mechanics and Applications
- Advanced Optical Sensing Technologies
- Semiconductor Quantum Structures and Devices
- graph theory and CDMA systems
- Power Line Communications and Noise
- Seismic Waves and Analysis
- Advanced Electrical Measurement Techniques
Nokia (France)
2016-2025
Nokia (Finland)
2017-2022
Alcatel Lucent (Germany)
2007-2021
Nokia (United States)
2008-2021
III V Lab
2006-2021
Thales (France)
2006-2021
Nokia (Canada)
2017
Centre National de la Recherche Scientifique
2006-2007
Laboratoire Traitement et Communication de l’Information
2006-2007
École Normale Supérieure - PSL
2004-2007
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> This paper summarizes recent advances on InAs/InP quantum dash (QD) materials for lasers and amplifiers, QD device performance with particular interest in optical communication. We investigate both dashes a barrier well (DWELL) heterostructures operating at 1.5 <formula formulatype="inline"><tex> $\mu$</tex></formula>m. These two types of QDs can provide high gain low losses. Continuous-wave (CW)...
We review the most recent advanced concepts and methods employed in cutting-edge spectrally efficient coherent fiber-optic transoceanic transmission systems, such as probabilistic shaping, adaptive digital nonlinear compensation, rate-adaptive spatially coupled low-density parity check codes, dual-band C+L-band transmission. Building upon all these methods, we demonstrate of 179 channels carrying a record net data rate 65 Tb/s over 6600 km, achieving spectral efficiency 7.3 b/s/Hz, average...
We demonstrate the first 115Tb/s lumped amplified transmission system based on novel ultrawideband semiconductor optical amplifiers. show successful of 250 channels carrying >400Gb/s each over a 100-km link.
Wavelength-division multiplexing (WDM) has historically enabled the increase in capacity of optical systems by progressively populating existing bandwidth erbium-doped fiber amplifiers (EDFAs) <inline-formula xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> <tex-math notation="LaTeX">$C$ </tex-math></inline-formula> -band. Nowadays, number channels—needed systems—is approaching maximum standard -band EDFAs. As a result, industry worked on novel...
<para xmlns:mml="http://www.w3.org/1998/Math/MathML" xmlns:xlink="http://www.w3.org/1999/xlink"> A record capacity distance product of 41.8 Petabit/s<formula formulatype="inline"> <tex Notation="TeX">$\cdot$</tex></formula>km is demonstrated. total 164 channels are modulated at 100 Gbit/s with PDM-QPSK format, packed 2 bit/s/Hz information spectral density and recovered by off-line processing in a coherent receiver after 2550 km distance. </para>
To provide higher capacity networks, 40-Gb/s transmission systems are under active development and their cost is on the way to be competitive with one of 410 Gb/s. However, lower tolerance linear nonlinear fiber impairments remains a major drawback for field deployment. address issue impairments, coherent detection multilevel formats polarization division multiplexing appears as promising solution by reducing symbol rate 10 Gbaud. Indeed, such based have already demonstrated an improved...
Imbalances between the four sampling channels of a coherent detector with polarization diversity can rapidly degrade system performance. One these imbalances, namely receiver skew, becomes increasingly important when higher symbol rates, modulation orders, and low roll-off pulse shapes are used. Here, we evaluate performance skew compensation based on complex-valued multiple-input multiple-output 4 × 2 adaptive equalizer that is tolerant to large residual chromatic dispersion. In addition,...
In this paper, 5 Tb/s bidirectional transmission (2.5 in each direction) over 2.2 km of OM2 fiber is demonstrated using selective excitation four mode groups, wavelength division multiplexing, and direct detection. Twenty wavelengths per group are used, modulated discrete multitone scheme with 1024 subcarriers external lithium niobate Mach–Zehnder modulator (MZM). A minimum bit rate 68.8 Gb/s channel obtained for a error 3.8 × 10 <sup xmlns:mml="http://www.w3.org/1998/Math/MathML"...
We demonstrate a 222 GBd on-off-keying transmitter in short-reach intra-datacenter scenario with direct detection after 120 m of standard single mode fiber. The system operates at net-data rates >200 Gb/s OOK for transmission distances few meters, and >177 over m, limited by chromatic dispersion the high symbol rate is enabled high-bandwidth plasmonic-organic hybrid Mach-Zehnder modulator on silicon photonic platform that ribbon-bonded to an InP DHBT 2:1 digital multiplexing selector....
Quantum key distribution (QKD) enables the establishment of secret keys between users connected via a channel vulnerable to eavesdropping, with information-theoretic security, that is, independently power malevolent party [1]. QKD systems based on encoding information continuous variables (CV), such as values quadrature components coherent states [2], [3], present major advantage they only require standard telecommunication technology. However, most general security proofs for CVQKD required...
We report on the ultra-wideband transmission of 254 PCS-64QAM channels over 300 km SSMF. demonstrate a 107-Tb/s throughput continuous 103 nm optical bandwidth using backward Raman pumping and SOA technology.
We report on the use of semiconductor optical amplifiers (SOAs) to extend bandwidth next generation systems 100 nm and beyond. After discussing technological progress motivation for rekindling interest in SOAs line amplification, we describe innovative approach developed realization ultra-wideband (UWB) SOAs. Leveraging custom design singly polarized provide gain over 100+ bandwidth, a polarization diversity architecture realize UWB-SOA modules. Embedded compact package, UWB amplifier...
In this paper, self-pulsation (SP) in a distributed Bragg reflector (DBR) semiconductor laser without saturable absorber is experimentally and theoretically investigated. Detailed experimental characterizations of the SP DBR are reported optical radio-frequency domains. Phase correlation between longitudinal modes selected by mirror has been demonstrated. A theoretical model based on coupled rate equations for three developed to study time evolution phases amplitudes modes. The carrier...
100Gb/s channels are transmitted over 7,040km. After propagation across eighty-eight 80km-long sections of large effective area fiber, separated by Raman-assisted erbium repeaters, demodulation PDM-QPSK waveforms is performed with digital processing in a coherent receiver.
We demonstrate a 56-GBd pulse-amplitude modulation-4 compact InP transmitter module integrating distributed feedback laser and an electro-absorption modulator, which exhibits 50-GHz bandwidth, >13-dB extinction ratio up to 1.5-mW output power. Successful amplifier-free 112-Gb/s transmission is performed over 2 km using low complexity three-taps equalization. also study the tradeoff between receiver equalizer length performance, show successful signal recovery with bandwidths as 18 GHz when...
We report on the use of semiconductor optical amplifiers (SOAs) to extend bandwidth next generation systems. After discussing technological progress and motivation for rekindling interest in SOAs line amplification, we point out that nonlinear gain dynamics SOA is not a limiting factor employing as amplifier. show passage high wavelength division multiplexed (WDM) channel count tends substantially reduce impairments, both through numerical analysis experimental investigations based standard...
We demonstrate the generation and detection of single-polarization 56-GBd PAM-8 PAM-4 signals using intensity modulation direct leveraging a novel high-speed high-output swing selector power DAC fabricated in an InP DHBT which does not require external driver. Considering 7% overhead hard-decision forward error control, we validate our design by transmitting 150 Gb/s net data rate signal based on over 2 km 100 4 standard single mode fiber without optical amplification. complement results...
In optical fiber networks, unrepeated links are cost effective solutions to provide connectivity in challenging contexts that hinder the deployment of in-line amplifiers. Extending bandwidth beyond C-band with ultra-wideband (UWB) amplification schemes is a promising way scale wavelength division multiplexed (WDM) throughput such single-span systems. this paper, we report on use semiconductor amplifiers (SOAs) combined distributed Raman pumping enable 100 nm transmissions over 257.5 km ultra...
In this paper, we demonstrate up to 260-GBaud single-wavelength coherent transmission by employing an optical transmitter based on two wide-bandwidth devices: a novel 260-GS/s arbitrary waveform generator with 10-dB bandwidth of 90-GHz and thin-film Lithium Niobate I/Q modulator 3-dB 110-GHz. We first assess the performance our high symbol rate for generating spectrally efficient Nyquist multilevel modulation format signals at rates 210-GBaud >1.4-Tbps achievable information using linear...
Since the advent of wavelength division multiplexed optical systems, increasing bit rate per carrier has proved to be most effective method drive overall cost systems down. However, multicarrier approaches have gained momentum for 400-Gb/s transport cope with bandwidth limitations optoelectronic components. In this paper, single modulated over transatlantic distances is demonstrated first time. Using high-speed digital-to-analog converters, we successfully generated a 64 GBaud...
We demonstrate a single-polarization driver-free, direct-detection 56-GBaud PAM-8 transceiver enabled by high-speed selector power DAC fabricated in InP DHBT, and successfully transmit 168 Gbit/s line-rate over 2 km distance without optical amplification.
Newly introduced polarization diversity probing codes are suggested to enhance the sensitivity and bandwidth performance of differential phase-sensitive distributed OTDR systems. This was recently demonstrated by means short-length specialized fibers with a backscattering induced equally spaced Fiber Bragg Gratings inserted in fiber itself. The work summarized this letter aims extend polarization-diversity technique widely spread standard single mode (SSMF) used for telecommunications,...
We designed a CV-QKD system with off-the-shelf components and established the feasibility of distributing 67.6 66.8 Mb/s secret key rates on average over 9.5 km SMF link, using respectively probabilistically shaped 64 256 QAM, relying novel analytical security proof.