A novel design for dispersion compensating photonic crystal fiber Raman amplifier |
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Authors: | Varshney SK Saitoh K Koshiba M |
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Affiliation: | Graduate Sch. of Inf. Sci. & Technol., Hokkaido Univ., Sapporo, Japan; |
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Abstract: | This letter presents a novel design for dispersion compensating photonic crystal fiber (DCPCF) which shows inherently flattened high Raman gain of 19 dB (/spl plusmn/1.2-dB gain ripple) over 30-nm bandwidth. The proposed design module has been simulated through an efficient full-vectorial finite element method. The designed DCPCF has a high negative dispersion coefficient (-200 to -250 ps/nm/km) over C-band wavelength (1530-1568 nm). The proposed fiber module of 5.2-km length not only compensates the accumulated dispersion in conventional single-mode fiber (SMF-28) but also compensates for the dispersion slope. Hence, the designed DCPCF module acts as the gain-flattened Raman amplifier and dispersion compensator. |
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