Abstract

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.

© 2009 Optical Society of America

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History
Original Manuscript: June 10, 2009
Manuscript Accepted: September 18, 2009
Revised Manuscript: August 4, 2009
Published: October 29, 2009

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Author Affiliations

Víctor Torres-Company, Lawrence R. Chen

McGill University

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