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Multiheterodyne Detection for Spectral Compression and Downconversion of Arbitrary Periodic Optical Signals

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4 Author(s)
Josue Davila-Rodriguez ; Center for Research and Education in Optics and Lasers, The College of Optics and Photonics, University of Central Florida, Orlando, USA ; Marcus Bagnell ; Charles Williams ; Peter J. Delfyett

Optical frequency combs are used as local oscillators for the measurement and analysis of unknown optical waveforms with periodic time domain structures. Experimental results obtained by heterodyning pulsed and phase-modulated laser sources are presented. The analysis is then extended to the heterodyning and sampling of bandlimited incoherent light sources. It is shown theoretically and experimentally that the correlations between photodetected white light at different times can generate RF interference that is sensitive to the optical phase.

Published in:

Journal of Lightwave Technology  (Volume:29 ,  Issue: 20 )