We report on the fabrication of high Q fused quartz microresonators and the generation of a frequency comb with 36 GHz mode spacing using them. We have characterized the intrinsic stability of the comb in both the time and frequency domains. Intensity autocorrelation measurements and line-by-line comb control reveal near-transform-limited picosecond pulses associated with good relative phase and amplitude stability of the comb lines. With access to the combs repetition rate at 36 GHz, we have also measured the microcombs intrinsic and absolute phase ﬂuctuations.
Citation: Physical Review
Pub Type: Journals
frequency comb, laser, micro-resonator, phase noise