Abstract
A simple pulser circuit to drive a single heterojunction GaAs laser diode which provides a single short duration (∼120 ps) optical pulse is described. However, study of emission characteristics of the diode laser shows many equally time spaced optical pulses when injection current in the diode is increased beyond the threshold of lasing. This phenomenon of diode laser emission is used to calibrate the picosecond time resolution optical streak camera, which provided sweep speed of ∼15 mm/1ns and nonlinearity in the sweep of ∼10%.
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