Publications

Affichage des publications 611 à 620 sur 638 au total

Optique

Experimental demonstration of a dual-frequency laser free from anti-phase noise

A reduction of more than 20 dB of the intensity noise at the anti-phase relaxation oscillation frequency is experimentally demonstrated in a two-polarization dual-frequency solid-state laser without any optical or electronic feedback loop. Such a…

Abdelkrim El Amili, Goulc'Hen Loas, Syamsundar De, Sylvain Schwartz, Gilles Feugnet, Jean-Paul Pocholle, Fabien Bretenaker, Mehdi Alouini

Optics Letters -

Optique

Experimental study of the delayed threshold phenomenon in a Class-A VECSEL

An experimental study of the delayed threshold phenomenon in a Vertical Extended Cavity Semiconductor Emitting Laser is carried out. Under modulation of the pump power, the laser intensity exhibits a hysteresis behavior in the vicinity of the…

Abdelkrim El Amili, Grégory Gredat, Mehdi Alouini, Isabelle Sagnes, Fabien Bretenaker

European Physical Journal: Applied Physics -

Physique Générale

Time delay generation at high frequency using SOA based slow and fast light

We show how Up-converted Coherent Population Oscillations (UpCPO) enable to get rid of the intrinsic limitation of the carrier lifetime, leading to the generation of time delays at any high frequencies in a single SOA device. The linear dependence…

Perrine Berger, Jerome Bourderionnet, Fabien Bretenaker, Daniel Dolfi, Mehdi Alouini

Optics Express -

Physique Générale

Observation of noise phase locking in a single-frequency VECSEL

We present an experimental observation of phase locking effects in the intensity noise spectrum of a semiconductor laser. These noise correlations are created in the medium by coherent carrier-population oscillations induced by the beatnote between…

A. El Amili, V. Pal, F. Goldfarb, R. Ghosh, M. Alouini, I. Sagnes, F. Bretenaker

Optics Express -

Physique Quantique

Observation of Slow Light in the Noise Spectrum of a Vertical External Cavity Surface-Emitting Laser

The role of coherent population oscillations is evidenced in the noise spectrum of an ultralow noise laser. This effect is isolated in the intensity noise spectrum of an optimized single-frequency vertical external cavity surface-emitting laser. The…

Abdelkrim El Amili, B.-X. Miranda, Fabienne Goldfarb, Ghaya Baili, Gilles Beaudoin, Isabelle Sagnes, Fabien Bretenaker, Mehdi Alouini

Physical Review Letters -