Fig. 3
From: Frequency stabilization and noise-induced spectral narrowing in resonators with zero dispersion
Spectral widening/narrowing in the conventional/zero-dispersion case. a In the conventional nonlinear regime (Vdc = −2.3 V), the spectral peak becomes wider and asymmetric as the noise intensity is increased. Each peak is normalized by its maximum measured value. b Measured (circles) and calculated (solid line) half-width at half-maximum (HWHM) of the spectral peaks increase monotonically with the noise intensity. c, d Similar plots for the zero-dispersion regime for Vdc = −1.51 V. Note the difference of scales as compared to a, b, respectively. The HWHM shows a distinctly non-monotonic dependence on the noise intensity, yielding a range of noise intensity where the spectral peak becomes narrower as the noise intensity increases. Error bars represent ±1 s.e.
