Abstract An undisturbed Brownian oscillator may not reach thermal equilibrium with the bath due to formation of a localized normal mode. The latter emerge when spectrum has finite upper bound ω 0 and natural frequency exceeds critical value ω <mml:mtext...

We report on a compact optical frequency comb, operating in the wavelength range from 670 to 1500 nm, based diode-pumped low-noise femtosecond Yb:CALGO amplified laser system. Both carrier-envelope offset and repetition rate are phase-locked reference synthesizers. A full characterization of terms stability, phase noise analysis, beating against single-frequency non-planar ring oscillator Nd:YA...