Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser

Michael J Strain; Marco Zanola; G Mezösi; Marc Sorel

doi:10.1364/ol.37.004732

Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser

Opt Lett. 2012 Nov 15;37(22):4732-4. doi: 10.1364/ol.37.004732.

Authors

Michael J Strain¹, Marco Zanola, G Mezösi, Marc Sorel

Affiliation

¹ School of Engineering, University of Glasgow, Glasgow G12 8LT, UK. michael.strain@glasgow.ac.uk

PMID: 23164895
DOI: 10.1364/ol.37.004732

Abstract

A compact semiconductor mode-locked laser (MLL) is presented that demonstrates strong passive Q-switched mode-locking over a wide range of drive conditions. The Q-switched frequency is tunable between 1 and 4 GHz for mode-locked pulses widths around 3.5 ps. The maximum ratio of peak to average power of the pulse-train is >120, greatly exceeding that of similarly sized passively MLLs.