SINGLE-SHOT OPTICAL CROSS-CORRELATOR APPARATUS AND METHOD

摘要

An apparatus and method pertaining to a single-shot cross-correlator based on a pulse replicator is described. The correlator uses a discrete sequence of sampling pulses that are nonlinearly mixed with a pulse under test. The sequence of spatially-displaced and temporally- delayed sampling pulses is generated using the combination of a high-reflector and partial reflector replicating an optical input pulse by multiple internal reflections. High-dynamic range and high sensitivity are obtained over a long temporal range.