A novel design for dispersion compensating photonic crystal fiber Raman amplifier
A novel design for dispersion compensating photonic crystal fiber Raman amplifier
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DOI：
10.1109/lpt.2005.854395
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发表时间：
2005-09
影响因子：
2.6
通讯作者：
S. Varshney;K. Saitoh;M. Koshiba
中科院分区：
文献类型：
--
作者：
S. Varshney;K. Saitoh;M. Koshiba
本文提出了一种新型色散补偿光子晶体光纤（DCPCF）的设计，该光纤在30 nm带宽上具有19 dB（/spl plusmn/1.2 dB增益涟漪）的固有平坦高拉曼增益。提出的设计模块已通过一个有效的全矢量有限元方法进行了模拟。所设计的DCPCF在C波段（1530-1568 nm）具有高的负色散系数（-200 ~-250 ps/nm/km）。所提出的5.2公里长的光纤模块不仅补偿了传统单模光纤（SMF-28）中的累积色散，而且还补偿了色散斜率。因此，所设计的DCPCF模块作为增益平坦的拉曼放大器和色散补偿器。
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.