Abstract

There is interest in generating either nanosecond or picosecond pulses by a single laser oscillator unit. The nanosecond pulse is usually obtained¹ using an active or passive Q-switch; the train of picosecond pulses is obtained using either an active or passive mode-locker, and several combinations of these may be considered. However, there is still a lack of a laser capable to switch from the nanosecond to picosecond regime.

© 1988 Optical Society of America