Fig. 5: Excellent noise performance.
From: Turnkey photonic flywheel in a microresonator-filtered laser
a SSB frequency noise spectra of the lasing pump mode, SBL and SBL comb line. Fundamental linewidths are calculated from the white noise floor of the measured SSB frequency noise spectra. The same fundamental linewidths of both pump laser and SBL and weak linewidth narrowing factor from the SBS process are attributed to the limit of laser RIN (see Supplementary Information Section VIII). b RIN of 980-nm laser, pump mode, SBL and SBL soliton. c SSB phase noise spectra of the SBS frequency shift (10.347 GHz) and repetition rate of single SBL soliton (10.087 GHz). The coherent artifacts at 2.5 MHz and its harmonics (green line) result from the 82-m delay fiber used in the ARMI setup, while the peak at 135 kHz comes from the EDFA pump RIN. d Long-term stability of the comb power and comb repetition rate over 2 h in the laboratory environment with temperature variation of ±1 K.
