We report on subpicosecond pulse generation using passively mode-locked laser diodes based on AlGaInAs 1.55-mum strained multiquantum-wells. Without any external pulse compression, the nearly transform-limited Gaussian pulses are generated at the quasi-40-GHz repetition rate with the 700-fs pulse duration.
Lianping, H., Stolarz, P., Javaloyes, J., Green, R. P., Ironside, C., Sorel, M., & Bryce, A. C. (2009). Subpicosecond Pulse Generation at Quasi-40-GHz Using a Passively Mode-Locked AlGaInAs–InP 1.55-µm Strained Quantum-Well Laser. IEEE Photonics Technology Letters, 21(23), 1731-1733. https://doi.org/10.1109/LPT.2009.2031088