title: High contrast, low noise selection and amplification of an individual optical frequency comb line.
abstract: We present a frequency-selective amplifier for optical frequency combs based on stimulated Brillouin scattering and the effect of a Brillouin dynamic grating. A user defined individual frequency comb line is amplified while the other comb lines are efficiently suppressed, rendering a frequency-stable clean-up oscillator unnecessary. A measured signal to noise ratio of 89 dBc/Hz proves the suitability of the method for phase coherent measurements. The overall noise figure is 6 dB.
authors: Physikalisch-Technische Bundesanstalt, Braunschweig, Germany. felix.rohde@ptb.de
authors: Felix
authors: F
authors: Rohde
authors: Erik
authors: E
authors: Benkler
authors: Harald R
authors: HR
authors: Telle