10.1109/JSTQE.2013.2291624, IEEE Journal of Selected Topics in Quantum Electronics> REPLACE THIS LINE WITH YOUR PAPER IDENTIFICATION NUMBER (DOUBLE-CLICK HERE TO EDIT) <

Abstract—We present results from two hybrid silicon mode-locked lasers, each with a 2 GHz cavity and one with an intra-cavity ring resonator filter. We compare the performance of the two lasers with respect to the harmonic mode-locking behavior at 20 GHz i.e. the tenth harmonic. The filter based laser design passively mode-locked at 20 GHz with an electrical spur mode suppression>45 dB. Furthermore, an optical supermode suppression of 55 dB and an RF linewidth of 52 kHz was also observed. Hybrid mode-locking the laser without the filter required 10 dBm input microwave power for 25 dB (electrical) spur mode suppression as opposed to the design with the filter showing>45 dB suppression at 0 dBm input power. Index Terms — Optoelectronic devices, mode-locked lasers