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This work presents an overview of a combined experimental and theoretical analysis on the manipulation of temporal localized structures (LSs) found in passively Vertical-Cavity Surface-Emitting Lasers coupled to resonant saturable absorber mirrors. We show that the pumping current is a convenient parameter for manipulating the temporal Localized Structures, also called localized pulses. While short...
Microwave/millimeter-wave signal generation and optical data communication applications demand compact, ultrafast and frequency agile mode-locked lasers. Monolithic semiconductor quantum dot lasers are attractive sources for such time-critical applications. Their repetition frequency is fixed by the laser cavity length and fine-tuning is limited. All-optical or opto-electrical laser stabilization...
Mechanically interlocked molecules represent chemical architectures whose composing elements are linked because of their topology instead of covalent bonds [1]. Among them, the catenanes are analogous to an ensemble of interlaced rings, globally locked yet locally independent. We disclose in this work the equivalent of such exotic molecules in the realm of nonlinear Photonics. They appear as interlocked...
The possibility of using light bullets (LBs), i.e. pulses simultaneously confined in the transverse and the propagation directions, has attracted a lot of interest in the last twenty years, both for fundamental and practical reasons.
In semiconductor-coupled micro and nano-cavities, the combination between tight light confinement and high optical nonlinearities open up new routes for the study of light-matter interaction in non-equilibrium driven dissipative systems. Even at the semiclassical level, coupled cavities may display a wide range of rich nonlinear dynamical phenomena such as instabilities and bifurcations [1]. Mode...
Passive mode-locking (PML) leads to the emission of temporal pulses much shorter than the cavity round-trip. It is achieved by combining two elements, a laser amplifier providing gain and a nonlinear loss element, usually a saturable absorber. It was recently shown [1] that individually addressable temporal Localized Structures (LSs) coexisting with the off solution can evolve from the PML regime...
Localized structures (LSs) in optical resonators have attracted much interest in the last twenty years. While LSs are ubiquitous in nature and their investigation conveys an intrinsic fundamental appeal, optical LSs are very attractive also for applications. Because they can be individually addressed and manipulated, LSs can be used as elementary bits of information for all-optical information processing...
In quantum optics, the statistical properties of the emitted photons define the nature of a light source. The black body is a well known example of source with large fluctuations and for which the statistics of the photon number is P(n) ≈ 1/〈 N 〉e−n/(n), if 〈n 〉 ≫ 1 with second order coherence g2 (0) = 2 (thermal light).
In this contribution we describe recent results on the generation and control of temporal localized structures in a passively mode-locked Vertical-Cavity Surface-Emitting Laser mounted in an external cavity closed by a resonant saturable absorber mirror. When the cavity roundtrip is much larger than the medium timescales, this system exhibits a temporal aspect-ratio large enough to host pulses which...
In this contribution we describe recent results on the generation and control of temporal localized structures in a passively mode-locked Vertical-Cavity Surface-Emitting Laser mounted in an external cavity closed by a resonant saturable absorber mirror. When the cavity roundtrip is much larger than the medium timescales, this system exhibits a temporal aspect-ratio large enough to host pulses which...
This manuscript details the use of the rational Chebyshev transform for describing the transverse dynamics of broad-area laser diodes and amplifiers. This spectral method can be used in combination with the delay algebraic equations approach developed in [1], which substantially reduces the computation time. The theory is presented in such a way that it encompasses the case of the Fourier spectral...
In this presentation we will review the results recently obtained on Time-Localized Structures (TLS) in VCSELs coupled to an external cavity. We show that, when the cavity roundtrip is much larger than the medium timescales, this system exhibits a temporal aspect-ratio large enough to host TLS. Two configurations will be considered. In the first one the system is submitted to cross-polarization reinjection...
In this presentation we will review the results recently obtained on Time-Localized Structures (TLS) in VCSELs coupled to an external cavity. We show that, when the cavity roundtrip is much larger than the medium timescales, this system exhibits a temporal aspect-ratio large enough to host TLS. Two configurations will be considered. In the first one the system is submitted to cross-polarization reinjection...
We investigate the relationship between passive mode-locking and the formation of temporal localized structures in the output of a laser, allowing for individual pulse addressing and arbitrary low repetition rates.
We investigate the generation of mixed mode oscillations in a periodic forced optoelectronic circuit comprising a high-speed resonant tunneling diode (RTD) and a laser diode (LD). The driven RTD-LD exhibits a two-state level operation, characterized by either periodic or aperiodic intermittent patterns with a high amplitude followed by small amplitudes, that can be used for applications in switching...
Future optical networks will require processing of phase and not only intensity encoded information. We demonstrate the regeneration and storage of optical phase bits in an experimental device based on semiconductor laser with coherent optical injection and delayed retro-action.
We report on an integrated optoelectronic regenerative pulse generator comprising an excitable resonant tunneling diode photo-detector, a laser diode, and an optical fiber in a delayed feedback loop enabling signal buffering and robust addressing.
We investigate the relationship between passive mode-locking and the formation of temporal localized structures in the output of a laser, allowing for individual pulse addressing and arbitrary low repetition rates.
We review the dynamics of VCSELs that experience both Polarization-Selective Feedback (PSF) and Crossed-Polarization Reinjection (XPR). Different regimes of regular pulsation have been found. For strong enough XPR levels, the VCSEL emission in each of its linearly-polarized components displays a square-wave modulation which regularity is greatly enhanced by small levels of PSF. Such a square-wave...
Excitable systems (known for their all or nothing and well calibrated response to external perturbations) are obvious candidates for the handling of binary data. In this contribution, we demonstrate experimentally that a semiconductor laser based excitable system placed in an optical feedback loop can act as a buffer for optical data. In the process, we demonstrate the existence and control of topological...
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