Abstract

A novel, simple method for wavelength-preserving temporal phase conjugation (TPC) of complex optical waveforms is proposed and experimentally validated. The method is based on the concept of time-domain holography; it requires direct photo-detection of the original waveform mixed with a CW light beam (temporal hologram recording), followed by intensity-only modulation of a second CW light source with the photo-detected interference-like pattern. The conjugated signal is directly obtained from the modulated light through an optical bandpass filtering process, without requiring any further processing on the detected interferogram. The proposed scheme is successfully demonstrated by conjugating a train of arbitrarily chirped Gaussian-like pulses and a 3 Gbps 16-QAM data stream.

© 2014 Optical Society of America

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