Richard Jones

A racetrack mode-locked silicon evanescent laser

By utilizing a racetrack resonator topography, an on-chip mode locked silicon evanescent laser (ML-SEL) is realized that is independent of facet polishing. This enables integration with other devices on silicon and precise control of the ML-SELs repetition rate through lithographic definition of the cavity length. Both passive and hybrid mode-locking have been achieved with transform limited, 7 ps pulses emitted at a repetition rate of 30 GHz. Jitter and locking range are measured under hybrid mode locking with a minimum absolute jitter and maximum locking range of 364 fs, and 50 MHz, respectively.

Hybrid Silicon-AlGaInAs Lasers and Optical Modulators

A number of important breakthroughs in the past decade have focused attention on Si as a photonic platform. We review here recent progress on efforts to make lasers on or in silicon and on silicon optical modulators.