Passively harmonically mode-locked vertical-external-cavity surface-emitting laser emitting 1.1 ps pulses at 147 GHz repetition rate

• Main Authors: Quarterman, A.H (Author), Perevedentsev, A. (Author), Wilcox, K.G (Author), Apostolopoulos, V. (Author), Beere, H.E (Author), Farrer, I. (Author), Ritchie, D.A (Author), Tropper, A.C (Author)
• Format: Article
• Language: English
• Published: 2010-12-20.
• Subjects: Article
• Online Access: Get fulltext

Coupled-cavity passive harmonic mode-locking of a quantum well based vertical-external-cavity surface-emitting laser has been demonstrated, yielding an output pulse train of 1.5 ps pulses at a repetition rate of 80 GHz and with an average power of 80 mW. Harmonic mode-locking results from coupling between the main laser cavity and a cavity formed within the substrate of the saturable absorber structure. Mode-locking on the second harmonic of the substrate cavity allows a train of 1.1 ps pulses to be generated at a repetition rate of 147 GHz with 40 mW average power.