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Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser
Michael J Strain1, Marco Zanola, G Mezösi
1School of Engineering, University of Glasgow, Glasgow G12 8LT, UK. michael.strain@glasgow.ac.uk
Optics Letters
|November 21, 2012
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.
