Quantum-limited noise performance of a femtosecond all-fiber ytterbium laser.
We report on quantum-limited noise performance of a mode-locked ytterbium all-fiber laser. The laser operates at a high normal net dispersion without dispersion compensation. We show that the naïve application of analytical models to such lasers leads to strongly underestimated timing jitter, whereas a numerical simulation is in reasonable agreement with measurements. The measured timing phase noise is found to be essentially limited by quantum noise influences and not by technical noise. Furthermore we show that the phase noise of different comb lines has a quasi-fix point at the center of the optical spectrum and that the jitter is translated into high carrier-envelope offset phase noise with a linewidth of around 3 MHz.
Prochnow
O
O
Laser Zentrum Hannover e.V., Hollerithallee 8, 30419 Hannover, Germany. o.prochnow@lzh.de
Paschotta
R
R
Benkler
E
E
Morgner
U
U
Neumann
J
J
Wandt
D
D
Kracht
D
D