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Optics Letters

Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Editor: Alan E. Willner
  • Vol. 37, Iss. 24 — Dec. 15, 2012
  • pp: 5259–5261

Low-noise delays from dynamic Brillouin gratings based on perfect Golomb coding of pump waves

Yair Antman, Nadav Levanon, and Avi Zadok  »View Author Affiliations


Optics Letters, Vol. 37, Issue 24, pp. 5259-5261 (2012)
http://dx.doi.org/10.1364/OL.37.005259


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Abstract

A method for long variable all-optical delay is proposed and simulated, based on reflections from localized and stationary dynamic Brillouin gratings (DBGs). Inspired by radar methods, the DBGs are inscribed by two pumps that are comodulated by perfect Golomb codes, which reduce the off-peak reflectivity. Compared with random bit sequence coding, Golomb codes improve the optical signal-to-noise ratio (OSNR) of delayed waveforms by an order of magnitude. Simulations suggest a delay of 5Gb/s data by 9 ns, or 45 bit durations, with an OSNR of 13 dB.

© 2012 Optical Society of America

OCIS Codes
(060.4370) Fiber optics and optical communications : Nonlinear optics, fibers
(200.4740) Optics in computing : Optical processing
(290.5900) Scattering : Scattering, stimulated Brillouin
(190.2055) Nonlinear optics : Dynamic gratings

ToC Category:
Scattering

History
Original Manuscript: October 31, 2012
Manuscript Accepted: November 26, 2012
Published: December 14, 2012

Citation
Yair Antman, Nadav Levanon, and Avi Zadok, "Low-noise delays from dynamic Brillouin gratings based on perfect Golomb coding of pump waves," Opt. Lett. 37, 5259-5261 (2012)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-37-24-5259

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