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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 33, Iss. 19 — Oct. 1, 2008
  • pp: 2230–2232

High-speed photonically assisted analog-to-digital conversion using a continuous wave multiwavelength source and phase modulation

Bartosz J. Bortnik and Harold R. Fetterman  »View Author Affiliations


Optics Letters, Vol. 33, Issue 19, pp. 2230-2232 (2008)
http://dx.doi.org/10.1364/OL.33.002230


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Abstract

A more simple photonically assisted analog-to-digital conversion system utilizing a cw multiwavelength source and phase modulation instead of a mode-locked laser is presented. The output of the cw multiwavelength source is launched into a dispersive device (such as a single-mode fiber). This fiber creates a pulse train, where the central wavelength of each pulse corresponds to a spectral line of the optical source. The pulses can then be either dispersed again to perform discrete wavelength time stretching or demultiplexed for continuous time analog-to-digital conversion. We experimentally demonstrate the operation of both time stretched and interleaved systems at 38 GHz . The potential of integrating this type of system on a monolithic chip is discussed.

© 2008 Optical Society of America

OCIS Codes
(060.5060) Fiber optics and optical communications : Phase modulation
(070.1170) Fourier optics and signal processing : Analog optical signal processing

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: June 6, 2008
Revised Manuscript: August 14, 2008
Manuscript Accepted: August 15, 2008
Published: September 29, 2008

Citation
Bartosz J. Bortnik and Harold R. Fetterman, "High-speed photonically assisted analog-to-digital conversion using a continuous wave multiwavelength source and phase modulation," Opt. Lett. 33, 2230-2232 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-19-2230


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