Recent developments in the techniques of generation and measurement of picosecond and sub-picosecond pulses from mode-locked lasers are reviewed. Particular attention is paid to frequency tunable, bandwidth-limited pulses from dye lasers, especially the C.W. dye laser. In measurement the main emphasis is put on the rapid advances of the last few years in ultrafast streak-cameras, and the recent developments' in streak-camera synchronization to a C.W. mode-locked laser is described. Future prospects for shorter wavelength pulses in the UV and VUV are briefly considered.