Subpicosecond pulse generation at 134 GHz using a quantum-dash-based Fabry-Perot laser emitting at 1.56 μm
Abstract
We demonstrate passive mode locking in one-section monolithic semiconductor laser diodes based on quantum-dash active layer at very high repetition rate in the 1.5μm window. Transform-limited pulses are generated at 134GHz with subpicosecond width, without any pulse compression scheme. A 50kHz linewidth of the radio-frequency spectrum is also demonstrated at 42GHz, the lowest value reported for any passively mode-locked semiconductor laser. We further show that the saturable absorption section in two-section devices has no significant impact on the mode-locking behavior.
- Publication:
-
Applied Physics Letters
- Pub Date:
- June 2006
- DOI:
- 10.1063/1.2213007
- Bibcode:
- 2006ApPhL..88x1105G
- Keywords:
-
- 42.65.Re;
- 42.60.Fc;
- 42.55.Px;
- Ultrafast processes;
- optical pulse generation and pulse compression;
- Modulation tuning and mode locking;
- Semiconductor lasers;
- laser diodes