Picture of two heads

Open Access research that challenges the mind...

The Strathprints institutional repository is a digital archive of University of Strathclyde research outputs. Strathprints provides access to thousands of Open Access research papers by University of Strathclyde researchers, including those from the School of Psychological Sciences & Health - but also papers by researchers based within the Faculties of Science, Engineering, Humanities & Social Sciences, and from the Strathclyde Business School.

Discover more...

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

Zhang, Wei and Ackemann, T. and Schmid, Marc and Langford, Nigel and Ferguson, Allister (2006) Femtosecond synchronously mode-locked vertical-external cavity surface-emitting laser. Optics Express, 14 (5). pp. 1810-1821. ISSN 1094-4087

[img]
Preview
PDF
Zhang_OptExp_14_1810_2006_sync.pdf - Final Published Version

Download (406kB) | Preview

Abstract

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 pulses generated directly from the laser, ultrashort pulses with duration of around 200 fs with maximum peak powers of 1.3 kW at 80 MHz were obtained. Multiple pulsing of the laser was observed and the effects of cavity length detuning on pulse width and spectral bandwidth have been investigated.