Fig. 2: Optical frequency combs (OFCs) generated by the spatially uniform adiabatic modulation of a parabolic SNAP bottle microresonator.
From: Optimized frequency comb spectrum of parametrically modulated bottle microresonators
The blue and red lines correspond to the OFC spectrum obtained from numerical solution of Eq. (3) for constant modulation amplitudes \(\delta {\nu }_{{{\mbox{par}}}}=2\) GHz (blue line) and \(\delta {\nu }_{{{\mbox{par}}}}=0.75\) GHz (orange line), respectively. In both cases, the Q-factor is \({Q}_{{q}_{0}}=1.2\times {10}^{7}\). The blue squares and the orange triangles correspond to the spectrum found from Eq. (8) for \(\delta {\nu }_{{{\mbox{par}}}}=2\) GHz and \(\delta {\nu }_{{{\mbox{par}}}}=0.75\) GHz, respectively.
