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Optics Letters

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  • Editor: Xi-Cheng Zhang
  • Vol. 39, Iss. 14 — Jul. 15, 2014
  • pp: 4243–4246

Incoherent-light temporal stretching of high-speed intensity waveforms

Bo Li and José Azaña  »View Author Affiliations


Optics Letters, Vol. 39, Issue 14, pp. 4243-4246 (2014)
http://dx.doi.org/10.1364/OL.39.004243


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Abstract

We propose and demonstrate experimentally the first incoherent-light scheme for temporal imaging (magnification) of intensity waveforms. The scheme is based on a time-domain equivalent of a pinhole camera under incoherent illumination, involving two dispersive lines and temporal intensity modulation with a short gate. We report incoherent-light temporal stretching of radiofrequency waveforms by a magnification factor of 2.86, with a time–bandwidth product exceeding 160, i.e., a resolution of 50ps over a temporal aperture of 8ns, totally avoiding the use of chirp-controlled pulsed lasers. This work opens up new perspectives for realization of many critical high-speed signal-processing modules using practical incoherent light-wave schemes.

© 2014 Optical Society of America

OCIS Codes
(070.1170) Fourier optics and signal processing : Analog optical signal processing
(250.4745) Optoelectronics : Optical processing devices
(110.6915) Imaging systems : Time imaging
(320.7085) Ultrafast optics : Ultrafast information processing

ToC Category:
Imaging Systems

History
Original Manuscript: April 23, 2014
Revised Manuscript: June 10, 2014
Manuscript Accepted: June 13, 2014
Published: July 15, 2014

Citation
Bo Li and José Azaña, "Incoherent-light temporal stretching of high-speed intensity waveforms," Opt. Lett. 39, 4243-4246 (2014)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-39-14-4243


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