Design and analysis of novel highly nonlinear photonic crystal fibers with ultra-flattened chromatic dispersion
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- 作者：Feroza Begum ; Yoshinori Namihira ; S.M. Abdur Razzak ; Shubi Kaijage ; Nguyen Hoang Hai ; Tatsuya Kinjo ; Kazuya Miyagi ; Nianyu Zou
- 刊名：Optics Communications
- 出版年：2009
- 出版时间：1 April 2009
- 年：2009
- 卷：282
- 期：7
- 页码：1416-1421
- 全文大小：539 K
文摘
The present article describes novel highly nonlinear photonic crystal fibers (HN-PCFs) with flattened chromatic dispersion and low confinement losses. The proposed design has been simulated based on the finite-difference method with anisotropic perfectly matched layers absorbing boundary condition. It is proved that the design novel HN-PCFs is obtained a nonlinear coefficient greater than 45 W−1 km−1 and low dispersion slope −0.009 ps/(nm2.km) at 1.55 μm wavelength. In addition, results from numerical simulation show that the ultra-flattened dispersion of 0 ± 0.65 ps/(nm.km) can be obtained in a 1.36–1.62 μm wavelength range with confinement losses lower than 10−7 dB/m in the same wavelength range. Another advantage of the proposed HN-PCFs is that it possessed modest number of design parameters.