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Optics Letters

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  • Editor: Alan E. Willner
  • Vol. 33, Iss. 13 — Jul. 1, 2008
  • pp: 1548–1550

Proposal for arbitrary-order temporal integration of ultrafast optical signals using a single uniform-period fiber Bragg grating

Mohammad H. Asghari and José Azaña  »View Author Affiliations


Optics Letters, Vol. 33, Issue 13, pp. 1548-1550 (2008)
http://dx.doi.org/10.1364/OL.33.001548


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Abstract

A simple and practical all-fiber design for implementing arbitrary-order temporal integration of ultrafast optical waveforms is proposed and numerically investigated. We demonstrate that an ultrafast photonics integrator of any desired integration order can be implemented using a uniform-period fiber Bragg grating (FBG) with a properly designed amplitude-only grating apodization profile. In particular, the grating coupling strength must vary according to the ( N 1 ) power of the fiber distance for implementing an Nth-order photonics integrator ( N = 1 , 2 , ) . This approach requires the same level of practical difficulty for realizing any given integration order. The proposed integration devices operate over a limited time window, which is approximately fixed by the round-trip propagation time in the FBG. Ultrafast arbitrary-order all-optical integrators capable of accurate operation over nanosecond time windows can be implemented using readily feasible FBGs.

© 2008 Optical Society of America

OCIS Codes
(200.4740) Optics in computing : Optical processing
(320.5540) Ultrafast optics : Pulse shaping
(320.7080) Ultrafast optics : Ultrafast devices
(060.3735) Fiber optics and optical communications : Fiber Bragg gratings

ToC Category:
Fiber Optics and Optical Communications

History
Original Manuscript: April 7, 2008
Revised Manuscript: May 16, 2008
Manuscript Accepted: May 28, 2008
Published: June 30, 2008

Citation
Mohammad H. Asghari and José Azaña, "Proposal for arbitrary-order temporal integration of ultrafast optical signals using a single uniform-period fiber Bragg grating," Opt. Lett. 33, 1548-1550 (2008)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-33-13-1548


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References

  1. A. V. Oppenheim, A. S. Willsky, S. N. Nawab, and S. H. Nawab, Signals and Systems, 2nd ed. (Prentice Hall, 1996).
  2. N. Q. Ngo and L. N. Binh, J. Lightwave Technol. 24, 563 (2006). [CrossRef]
  3. N. Q. Ngo, Opt. Lett. 32, 3020 (2007). [CrossRef]
  4. J. Azaña, Opt. Lett. 33, 4 (2008). [CrossRef]
  5. J. Azaña and L. R. Chen, J. Opt. Soc. Am. B 19, 2758 (2002). [CrossRef]
  6. T. Erdogan, J. Lightwave Technol. 15, 1277 (1997). [CrossRef]

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