Dispersion management in femtosecond laser oscillators with highly dispersive mirrors

This study demonstrates a standard, short-cavity four-mirror Ti-sapphire oscillator that utilizes highly dispersive mirrors (HDMs) for dispersion compensation. A close-to-transform-limited operation is achieved in each mode-locked Ti:sapphire laser oscillator configuration, with pulse durations ranging from 50 to 110 fs. Results show that the HDMs can cope with a considerable amount of dispersive material in the cavity and can improve the compactness of these lasers.