Single picosecond pulses have been amplified to the terawatt level by a tabletop Nd:glass amplifier by using the technique of chirped pulse amplification (CPA). The addition of a grating stretching stage made possible the generation and amplification of 1 ns chirped pulses, while preserving a final pulse width of 1 ps. Apart from being compact and powerful, the CPA laser provides a simple way of selecting the pulse duration, a feature which should prove very useful for high power laser-matter interaction study.
"Tabletop Terawatt Laser By Chirped Pulse Amplification", Proc. SPIE 0913, High Intensity Laser-Matter Interactions, (11 July 1988); doi: 10.1117/12.965137; https://doi.org/10.1117/12.965137