Paolo Bardella | Politecnico di Torino (original) (raw)

Paolo Bardella

Uploads

Papers by Paolo Bardella

Research paper thumbnail of Picosecond pulse generation with 34W peak power using a monolithic quantum-dot tapered mode-locked laser and tapered optical amplifier

2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013

Research paper thumbnail of Modelling of passive mode-locking in InAs quantum-dot lasers with tapered gain section

physica status solidi (c), 2012

Abstract We propose a computationally efficient approach for the simulation and design of index-g... more Abstract We propose a computationally efficient approach for the simulation and design of index-guided quantum-dot (QD) passively mode-locked lasers with tapered gain section; the method is based on the combination of simulations based on a finite difference beam-...

Research paper thumbnail of Photon-photon resonance enhanced modulation bandwidth in CCIG lasers

Research paper thumbnail of High-speed distributed-feedback lasers with nanoscale surface gratings

2013 IEEE 4th International Conference on Photonics (ICP), 2013

Research paper thumbnail of Extending the direct laser modulation bandwidth by exploiting the photon-photon resonance: modeling, simulations and experiments

ABSTRACT The direct laser modulation bandwidth can be extended substantially by introducing a sup... more ABSTRACT The direct laser modulation bandwidth can be extended substantially by introducing a supplementary photon-photon resonance (PPR) at a higher frequency than the carrier-photon resonance (CPR). The paper presents a modified rate equation model that takes into account the PPR by treating the longitudinal confinement factor as a dynamic variable. The conditions required for obtaining a strong PPR and an enhancement of the small-signal modulation bandwidth are analyzed and experimental results confirming the model are presented. Since the small-signal modulation bandwidth may not be indicative of the large-signal modulation capability, particularly in case of a small-signal modulation response with substantial variations across the bandwidth, we have also analyzed the influence of the PPR-enhanced small-signal modulation response shape on the large-signal modulation capability as well as the methods that can be employed to flatten the small-signal modulation transfer function between the CPR and PPR.

Research paper thumbnail of A Fast Time Domain Travelling Wave simulator for Quantum Dot Lasers and Amplifiers

Research paper thumbnail of FDTW Approach for Simulation of QD lasers and SOAs

Research paper thumbnail of Cavity optimization of 1.3μm InAs/InGaAs quantum dot passively mode-locked lasers

Semiconductor Lasers and Applications V, 2012

Research paper thumbnail of Tunable Master-Oscillator Power Amplifier Using All Chirped Quantum-Dot Structures

Conference on Lasers and Electro-Optics 2012, 2012

Research paper thumbnail of High power performances of broad bandwidths superluminescent diodes (SLDs) based on chirped-quantum-dot structures operating at 1100 and 1200 nm for optical coherence tomography (OCT) applications

CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, 2009

New OCT systems demand higher resolution using broadband SLDs. This paper presents a new class of... more New OCT systems demand higher resolution using broadband SLDs. This paper presents a new class of SLDs based on chirped multilayered quantum dots to achieve broad spectral widths. These SLD chips and modules operating around 1.1 mum and 1.2 mum have demonstrated wide optical spectra, low spectral ripples and dips allied with record output powers crucial for signal-to-noise performance for

Research paper thumbnail of Modelling of Broad Band Quantum Dot Superluminescent Diodes With Chirping

Research paper thumbnail of Mode-Locked Multi-Quantum-Well Lasers: Comparison between Different FD-TM Models

Research paper thumbnail of Picosecond pulse amplification up to a peak power of 42 W by a quantum-dot tapered optical amplifier and a mode-locked laser emitting at 126 µm

Research paper thumbnail of Time Domain Travelling Wave Approach to Investigate the Multi-Mode Dynamics and the Self-Mode Locking in 1.3 µm InAs/GaAs Fabry-Perot Quantum Dot Lasers

2014 International Semiconductor Laser Conference, 2014

Research paper thumbnail of A new design procedure for DBR lasers exploiting the photon–photon resonance to achieve extended modulation bandwidth

Research paper thumbnail of Numerical analysis of passively mode-locked quantum-dot lasers with absorber section at the low-reflectivity output facet

Research paper thumbnail of A time-domain travelling-wave model including multi-population rate-equations for passively mode-locked quantum-dot lasers

Research paper thumbnail of Design and simulation of DBR lasers with extended modulation bandwidth exploiting photon-photon resonance effect

Research paper thumbnail of Carrier transport effects in multi layer quantum dot lasers and SLDs

Research paper thumbnail of Quantum Dot Passively Mode-Locked Laser Optimization for High-Power and Short Pulses

Research paper thumbnail of Picosecond pulse generation with 34W peak power using a monolithic quantum-dot tapered mode-locked laser and tapered optical amplifier

2013 Conference on Lasers & Electro-Optics Europe & International Quantum Electronics Conference CLEO EUROPE/IQEC, 2013

Research paper thumbnail of Modelling of passive mode-locking in InAs quantum-dot lasers with tapered gain section

physica status solidi (c), 2012

Abstract We propose a computationally efficient approach for the simulation and design of index-g... more Abstract We propose a computationally efficient approach for the simulation and design of index-guided quantum-dot (QD) passively mode-locked lasers with tapered gain section; the method is based on the combination of simulations based on a finite difference beam-...

Research paper thumbnail of Photon-photon resonance enhanced modulation bandwidth in CCIG lasers

Research paper thumbnail of High-speed distributed-feedback lasers with nanoscale surface gratings

2013 IEEE 4th International Conference on Photonics (ICP), 2013

Research paper thumbnail of Extending the direct laser modulation bandwidth by exploiting the photon-photon resonance: modeling, simulations and experiments

ABSTRACT The direct laser modulation bandwidth can be extended substantially by introducing a sup... more ABSTRACT The direct laser modulation bandwidth can be extended substantially by introducing a supplementary photon-photon resonance (PPR) at a higher frequency than the carrier-photon resonance (CPR). The paper presents a modified rate equation model that takes into account the PPR by treating the longitudinal confinement factor as a dynamic variable. The conditions required for obtaining a strong PPR and an enhancement of the small-signal modulation bandwidth are analyzed and experimental results confirming the model are presented. Since the small-signal modulation bandwidth may not be indicative of the large-signal modulation capability, particularly in case of a small-signal modulation response with substantial variations across the bandwidth, we have also analyzed the influence of the PPR-enhanced small-signal modulation response shape on the large-signal modulation capability as well as the methods that can be employed to flatten the small-signal modulation transfer function between the CPR and PPR.

Research paper thumbnail of A Fast Time Domain Travelling Wave simulator for Quantum Dot Lasers and Amplifiers

Research paper thumbnail of FDTW Approach for Simulation of QD lasers and SOAs

Research paper thumbnail of Cavity optimization of 1.3μm InAs/InGaAs quantum dot passively mode-locked lasers

Semiconductor Lasers and Applications V, 2012

Research paper thumbnail of Tunable Master-Oscillator Power Amplifier Using All Chirped Quantum-Dot Structures

Conference on Lasers and Electro-Optics 2012, 2012

Research paper thumbnail of High power performances of broad bandwidths superluminescent diodes (SLDs) based on chirped-quantum-dot structures operating at 1100 and 1200 nm for optical coherence tomography (OCT) applications

CLEO/Europe - EQEC 2009 - European Conference on Lasers and Electro-Optics and the European Quantum Electronics Conference, 2009

New OCT systems demand higher resolution using broadband SLDs. This paper presents a new class of... more New OCT systems demand higher resolution using broadband SLDs. This paper presents a new class of SLDs based on chirped multilayered quantum dots to achieve broad spectral widths. These SLD chips and modules operating around 1.1 mum and 1.2 mum have demonstrated wide optical spectra, low spectral ripples and dips allied with record output powers crucial for signal-to-noise performance for

Research paper thumbnail of Modelling of Broad Band Quantum Dot Superluminescent Diodes With Chirping

Research paper thumbnail of Mode-Locked Multi-Quantum-Well Lasers: Comparison between Different FD-TM Models

Research paper thumbnail of Picosecond pulse amplification up to a peak power of 42 W by a quantum-dot tapered optical amplifier and a mode-locked laser emitting at 126 µm

Research paper thumbnail of Time Domain Travelling Wave Approach to Investigate the Multi-Mode Dynamics and the Self-Mode Locking in 1.3 µm InAs/GaAs Fabry-Perot Quantum Dot Lasers

2014 International Semiconductor Laser Conference, 2014

Research paper thumbnail of A new design procedure for DBR lasers exploiting the photon–photon resonance to achieve extended modulation bandwidth

Research paper thumbnail of Numerical analysis of passively mode-locked quantum-dot lasers with absorber section at the low-reflectivity output facet

Research paper thumbnail of A time-domain travelling-wave model including multi-population rate-equations for passively mode-locked quantum-dot lasers

Research paper thumbnail of Design and simulation of DBR lasers with extended modulation bandwidth exploiting photon-photon resonance effect

Research paper thumbnail of Carrier transport effects in multi layer quantum dot lasers and SLDs

Research paper thumbnail of Quantum Dot Passively Mode-Locked Laser Optimization for High-Power and Short Pulses

Log In