Microwave Characterization and Stabilization of Timing Jitter in a Quantum-Dot Passively Mode-Locked Laser via External Optical Feedback

Chang-Yi Lin (1) , Frédéric Grillot (2) , Yan Li (1) , Ravi Raghunathan (1) , Luke F Lester (1)

1 CHTM - Center for High Technology Materials
2 FOTON - Fonctions Optiques pour les Technologies de l'informatiON

The pulse-to-pulse rms timing jitter of a 5.25-GHz quantum-dot (QD) two-section passively mode-locked laser is characterized through an all-microwave technique. The experimental phase noise spectra at different harmonics are in good agreement with previous diffusion-based theory. This theory is validated for a QD mode-locked laser device for the first time. This measurement technique provides a simple way to characterize the noise performance of a passively mode-locked laser. Furthermore, the average pulse-to-pulse rms timing jitter reduces from 295 to 32 fs/cycle via external optical.

Mots clés: microwave spectra; quantum dot lasers; time division multiplexing; laser feedback; laser mode locking; laser noise; laser variables measurement; microwave measurement; timing jitter

Domaines: Sciences de l'ingénieur [physics]

Chang-Yi Lin, Frédéric Grillot, Yan Li, Ravi Raghunathan, Luke F Lester. Microwave Characterization and Stabilization of Timing Jitter in a Quantum-Dot Passively Mode-Locked Laser via External Optical Feedback. IEEE Journal of Selected Topics in Quantum Electronics, 2011, 17 (5), pp.1311-1317. ⟨10.1109/JSTQE.2011.2118745⟩. ⟨hal-01166286⟩