Modeling of ultrashort pulse amplification with gain saturation.

A new method for the realistic modeling of ultrashort pulse amplification under conditions of strong gain saturation has been developed. Both the frequency dependence and the time dependence of the gain are properly taken into account. The method can, for example, be applied to chirped-pulse bulk and fiber amplifiers, but is not restricted to pulses with particular spectral or temporal properties.

Sub-100 attosecond timing jitter from low-noise passively mode-locked solid-state laser at telecom wavelength.

We report on the ultralow timing jitter of the 100 MHz pulse trains generated by two identical passively mode-locked diode-pumped solid-state lasers (DPSSLs) emitting at 1556 nm. Ultralow timing jitter of 83 as (integrated from 10 kHz to 50 MHz) for one laser has been measured with a balanced optical cross-correlator as timing discriminator. Extremely low intensity noise has been measured as well.

Timing jitter and phase noiseof mode-locked fiber lasers.

The noise properties of mode-locked fiber lasers differ in various respects from those of bulk lasers. The reasons for this are both quantitative and qualitative differences concerning the pulse formation. The underlying theoretical aspects are discussed in detail.

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.

Amplification of photon echo signals by use of a fiber amplifier.

The efficiency of photon-echo processes typically lies in the 0.1-1% range. For many photon-echo-based applications suggested in optical storage and all-optical communication the photon-echo output pulses would need to be used as input data to a new photon-echo process.