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.
- semiconductor laser
- Bragg reflector
Strain, M. J., Zanola, M., Mezösi, G., & Sorel, M. (2012). Ultrashort Q-switched pulses from a passively mode-locked distributed Bragg reflector semiconductor laser. Optics Letters, 37(22), 4732-4734. https://doi.org/10.1364/OL.37.004732