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Optics Express

Optics Express

  • Editor: Michael Duncan
  • Vol. 14, Iss. 8 — Apr. 17, 2006
  • pp: 3528–3540

Design and analysis of a broadband dispersion compensating photonic crystal fiber Raman amplifier operating in S-band

Shailendra K. Varshney, Takeshi Fujisawa, Kunimasa Saitoh, and Masanori Koshiba  »View Author Affiliations


Optics Express, Vol. 14, Issue 8, pp. 3528-3540 (2006)
http://dx.doi.org/10.1364/OE.14.003528


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Abstract

This paper presents an optimized design of a dispersion compensating photonic crystal fiber (PCF) to achieve gain-flattened Raman performances over S-band using a single pump. Genetic algorithm interfaced with an efficient full-vectorial finite element modal solver based on curvilinear edge/nodal elements is used as an optimization tool for an accurate determination of PCF design parameters. The designed PCF shows high negative dispersion coefficient (-264 ps/nm/km to -1410 ps/nm/km) and negative dispersion slope, providing coarse dispersion compensation over the entire S-band. The module comprised of 1.45-km long optimized PCF exhibits ±0.46 dB gain ripples over 50 nm wide bandwidth and shows a very low double Rayleigh backscattering value (-59.8 dB). The proposed module can compensate for the dispersion accumulated in one span (80-km) of standard single mode fiber with a residual dispersion of ±700 ps/nm, ensuring its applicability for 10 Gb/s WDM networks. Additionally, the designed PCF remains single mode over the range of operating wavelengths.

© 2006 Optical Society of America

OCIS Codes
(060.2280) Fiber optics and optical communications : Fiber design and fabrication

ToC Category:
Photonic Crystal Fibers

History
Original Manuscript: March 16, 2006
Revised Manuscript: April 5, 2006
Manuscript Accepted: April 5, 2006
Published: April 17, 2006

Citation
Shailendra K. Varshney, Takeshi Fujisawa, Kunimasa Saitoh, and Masanori Koshiba, "Design and analysis of a broadband dispersion compensating photonic crystal fiber Raman amplifier operating in S-band," Opt. Express 14, 3528-3540 (2006)
http://www.opticsinfobase.org/oe/abstract.cfm?URI=oe-14-8-3528


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