Ultrashort Optical Pulse Waveform Measurement Optical. Application to Fiber Communication.

Ultrashort optical waveform measurements using frequency-resolved optical gating.

We measure the intensity and phase of ultrashort pulses from a self-mode-locked Ti:sapphire laser using the recently developed technique of frequency-resolved optical gating. These results represent to our knowledge the shortest complete optical waveform characterization measurements performed to date. We also verify recent theoretical calculations that predict that the main limitation on the p...

Development of ultrashort pulse fiber lasers for optical communication utilizing semiconductor devices

The nonlinear reflectivity of semiconductor saturable absorber mirrors is investigated with ultrafast time-resolved and time-averaged reflectivity measurements. The relative contributions of absorption bleaching and induced absorption are studied as a function of fluence and wavelength. The impact of induced absorption on the stability of continuous-wave mode-locking is considered theoretically...

Measurement of Ultrashort Optical Pulses

Modeling of Nonlinear Ultrashort Optical Pulse Propagation

I present a numerical package, written in MATLAB, which provides a simplified scripting interface for simulating a host of ultrashort pulse propagation phenomena. With the proliferation of ultrashort laser technologies, the demand for efficient and accurate simulations has grown significantly. Here I introduce a linear-operator-based formalism for nonlinear pulse propagation beyond the slowly-v...

Ultrashort Optical Pulse Measurements by Inteferometric Spectrogram

We experimentally demonstrate that an interferometric spectrogram of the signal pulse can be processed differently to obtain the spectral amplitude and(or) phase profile(s). Consistency between the results obtained by frequencyresolved optical gating (FROG) and modified interferometric field autocorrelation (MIFA) methods is confirmed. We also show that the robustness of MIFA technique against ...