Laser-initiated krytron-switched Blumlein structure for pulse selection

Abstract

A method is described for the selection of a mode-locked pulse from a laser by the use of a laser-initiated krytron-switched Blumlein structure that replaces the usual high voltage spark gap. The main features are an all electronic circuit coupled to a longitudinal mode KD*P Pockels cell that has a fast risetime and high extinction ratio. The result is an inexpensive, noise-free pulse selector that provides a stable source of switched out pulses.