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Applied Physics Letters / Volume 95 / Issue 23 / LASERS, OPTICS, AND OPTOELECTRONICS

Appl. Phys. Lett. 95, 231108 (2009); http://dx.doi.org/10.1063/1.3271678 (3 pages)

Optical phase recovery in the dispersive Fourier transform

D. R. Solli, S. Gupta, and B. Jalali

Department of Electrical Engineering, University of California, Los Angeles, California 90095, USA

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(Received 7 August 2009; accepted 10 November 2009; published online 9 December 2009)

The dispersive Fourier transform permits real-time acquisition of optical spectra with analog-to-digital converters. The method utilizies the property that a signal’s temporal envelope matches its spectral profile if sufficiently dispersed. Unfortunately, the dispersion demand can be substantial and signal losses in highly dispersive elements represent a significant challenge, especially outside the telecommunications band. We address this problem by experimentally demonstrating that a time-domain equivalent of the Gerchberg–Saxton algorithm removes the fundamental dispersion requirement in the dispersive Fourier transform. The algorithm recovers the phase from time-domain intensity measurements.

© 2009 American Institute of Physics

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KEYWORDS and PACS

Keywords

Fourier transforms, optical communication, optical dispersion, optical information processing

PACS

  • 42.30.Rx

    Phase retrieval

  • 42.79.Sz

    Optical communication systems, multiplexers, and demultiplexers

  • 02.30.Uu

    Integral transforms

ARTICLE DATA

Digital Object Identifier
http://dx.doi.org/10.1063/1.3271678

PUBLICATION DATA

ISSN

0003-6951 (print)  
1077-3118 (online)

Publisher

$abstract.society.value is a Member of CrossRef American Institute of Physics

For access to fully linked references, you need to log in.
    H. R. Fetterman, P. E. Tannenwald, C. D. Parker, J. Melngailis, and R. C. Williamson, Appl. Phys. Lett. 34, 123 (1979)APPLAB000034000002000123000001.


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