All-fiber joint-transform correlator for time-multiplexed signals.
We present the temporal counterpart of a spatial joint-transform correlator. This system optically measures the rf spectrum of a real-time spectral interferogram achieved by stretching a sequence of two time-multiplexed pulses. The optical rf analyzer makes use of the cross-phase modulation on a cw probe in a highly nonlinear fiber. We show that the optical spectrum appearing on the cw signal contains the information of the electric-field cross correlation of the signals under test. This device offers potential applications for all-optical pattern recognition of ultrashort pulses.
Torres-Company
Víctor
V
Department of Electrical and Computer Engineering, McGill University, H3A 2A7 Montreal, Canada. victor.torrescompany@mail.mcgill.ca
Chen
Lawrence R
LR