1. Analysis of a realistic and idealized dispersion compensating photonic crystal fiber Raman amplifier
- Author
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Varshney, Shailendra K., Saitoh, Kunimasa, Koshiba, Masanori, and Roberts, Peter J.
- Subjects
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OPTICAL fibers , *DISPERSION (Chemistry) , *FINITE element method , *PHOTONICS , *CRYSTAL whiskers , *RAMAN effect , *OPTICS - Abstract
In the present paper, the highly efficient Raman amplification properties of a realistic and idealized dispersion compensating photonic crystal fiber (DCPCF) are described numerically. We have used an accurate full-vectorial finite element modal solver with hybrid curvilinear edge/nodal elements and anisotropic perfectly matched layers for an accurate modal characterization of the realistic as well as idealized DCPCF. A good agreement is observed between numerically evaluated and experimentally [P.J. Roberts, B.J. Mangan, H. Sabert, F. Couny, et al., J. Opt. Fiber Commun. Rep. 2 (2005) 435–461] measured dispersion values. A high peak Raman gain efficiency of 10.5 W−1 km−1 is obtained at 13.1 THz frequency shift for a 1455 nm depolarized pump. A DCPCF module of 1-km length can compensate for the dispersion accumulated over 70-km of conventional single mode fiber link with a residual dispersion of ±50 ps/nm and can provide an average gain of 7.6 dB with ±0.9 dB gain ripples over C-band. [Copyright &y& Elsevier]
- Published
- 2007
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