The AVP series of pulse generators offer the fastest rise times available in the Avtech product line, with rise times as low as 50 ps for 10V units, and 150 ps for 40V units.
The AVP-AV-1 family provides 100 ps, 10V pulses. The AVPAV- HV2 family has amplitudes to 20V, pulse widths variable from 0.3 to 2 ns, with 100 ps rise times. These two families are also available in the computer-controllable -B format. (The rise times for -B models are slightly longer, and the minimum pulse width is 0.4 ns).