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Opt Express. 2008 Jan 21;16(2):1393-8.

A racetrack mode-locked silicon evanescent laser.

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  • 1University of California, Santa Barbara, Department of Electrical and Computer Engineering, Santa Barbara, CA 93106, USA.


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-SEL's 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.

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