For the first time passive mode-locking in two-section quantum-dot lasers operating at wavelengths around 1.55 µm is reported. Pulse generation at 4.6 GHz from a 9-mm long device is verified by background-free autocorrelation, RF-spectra and real-time oscilloscope traces. The output pulses have a 7 nm optical bandwidth and are stretched in time and heavily up-chirped with a value of 20 ps/nm. From a 7 mm long device Q-switching is observed over a large operating regime. The lasers have been realized using a fabrication technology that is compatible with further photonic integration, and can perform the function of e.g. a mode-comb generator.
|Title of host publication||Proceedings of the 12th Annual Symposium of the IEEE/LEOS Benelux Chapter, 17-18 December 2007, Brussels, Belgium|
|Editors||M. Delqué, Ph. Emplit, S.P. Gorza, P. Kockaert, X.J.M. Leijtens|
|Place of Publication||Brussels|
|Publication status||Published - 2007|
|Event||12th Annual Symposium of the IEEE/LEOS Benelux Chapter, December 17-18, 2007, Brussels, Belgium - Brussels, Belgium|
Duration: 17 Dec 2007 → 18 Dec 2007
|Conference||12th Annual Symposium of the IEEE/LEOS Benelux Chapter, December 17-18, 2007, Brussels, Belgium|
|Period||17/12/07 → 18/12/07|
Heck, M. J. R., Bente, E. A. J. M., Smalbrugge, E., Oei, Y. S., Smit, M. K., Anantathanasarn, S., & Nötzel, R. (2007). Observation of Q-switching and mode-locking in two-section InAs/InP (100) quantum dod lasers around 1.55 μm. In M. Delqué, P. Emplit, S. P. Gorza, P. Kockaert, & X. J. M. Leijtens (Eds.), Proceedings of the 12th Annual Symposium of the IEEE/LEOS Benelux Chapter, 17-18 December 2007, Brussels, Belgium (pp. 11-14). IEEE/LEOS.