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

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 coherent population oscillations induced by the lasing mode manifest themselves through their associated dispersion that leads to slow light effect...

Saturation-induced frequency shift in the noise spectrum of a birefringent vertical-cavity surface emitting laser.

We show by means of analytical and numerical calculations that saturation, in combination with the linewidth-enhancement factor and the finite rate of spin-flip processes, causes a redshift of the spontaneous-emission peak with respect to the off-lasing-mode frequency in the optical spectrum of a quantum-well vertical-cavity surface emitting laser.

Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser.

The behavior of a room temperature synchronously mode-locked vertical-external cavity surface-emitting laser (VECSEL) operating at 980 nm is reported. The laser performance was found to be qualitatively the same for different pump pulse duration (3.6 ps and 70 fs). The pulse duration of the laser is limited by strong self-phase modulation to around 10-40 ps. By compressing the strongly chirped ...

Tunable ultraslow light in vertical-cavity surface-emitting laser amplifier.

We report the experimental demonstration of tunable ultraslow light using a 1.55 um vertical-cavity surface-emitting laser (VCSEL) at room temperature. By varying the bias current around lasing threshold, we achieve tunable delay of an intensity modulated signal input. Delays up to 100 ps are measured for a broadband signal with modulation frequency of 2.8 GHz. With a VCSEL design optimized for...

An overview of laser operation and modelocking of a vertical external cavity surface emitting laser (VECSEL)