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Applied Optics

Applied Optics

APPLICATIONS-CENTERED RESEARCH IN OPTICS

  • Editor: Glenn D. Boreman
  • Vol. 44, Iss. 36 — Dec. 20, 2005
  • pp: 7862–7866

Complete characterization of optical pulses by real-time spectral interferometry

Naum K. Berger, Boris Levit, Vladimir Smulakovsky, and Baruch Fischer  »View Author Affiliations


Applied Optics, Vol. 44, Issue 36, pp. 7862-7866 (2005)
http://dx.doi.org/10.1364/AO.44.007862


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Abstract

We demonstrate a simple method for complete characterization (of amplitudes and phases) of short optical pulses, using only a dispersive delay line and an oscilloscope. The technique is based on using a dispersive delay line to stretch the pulses and recording the temporal interference of two delayed replicas of the pulse train. Then, by transforming the time domain interference measurements to spectral interferometry, the spectral intensity and phase of the input pulses are reconstructed, using a Fourier-transform algorithm. In the experimental demonstration, mode-locked fiber laser pulses with durations of ∼1 ps were characterized with a conventional fast photodetector and an oscilloscope.

© 2005 Optical Society of America

OCIS Codes
(070.4790) Fourier optics and signal processing : Spectrum analysis
(100.5070) Image processing : Phase retrieval
(120.3180) Instrumentation, measurement, and metrology : Interferometry
(140.3510) Lasers and laser optics : Lasers, fiber
(320.5550) Ultrafast optics : Pulses
(320.7100) Ultrafast optics : Ultrafast measurements

ToC Category:
Ultrafast Optics

History
Original Manuscript: May 5, 2005
Revised Manuscript: August 17, 2005
Manuscript Accepted: August 22, 2005
Published: December 20, 2005

Citation
Naum K. Berger, Boris Levit, Vladimir Smulakovsky, and Baruch Fischer, "Complete characterization of optical pulses by real-time spectral interferometry," Appl. Opt. 44, 7862-7866 (2005)
http://www.opticsinfobase.org/ao/abstract.cfm?URI=ao-44-36-7862


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