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Ultra-flattened chromatic dispersion photonic crystal fiber with high nonlinearity for supercontinuum generation

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6 Author(s)
Wang, Yamiao ; Key Laboratory of Information Photonics and Optical Communications (BUPT), Ministry of Education; Institute of Optical Communications and Optoelectronics, Beijing University of Posts and Telecommunications, P.O. Box 66 (Room 741), 100876, China ; Xia Zhang ; Xiaomin Ren ; Zheng, Long
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We propose a novel design for photonic crystal fiber, which has flattened-dispersion, high nonlinear coefficient and low confinement loss for supercontinuum generation. The proposed fiber needs appropriate number of design parameters. Results show that eight-ringed photonic crystal fiber is obtained with nonlinear coefficient greater than 33W−1km−1, and small dispersion slope 2.00×10−3ps/nm2/km in the telecommunication window. Ultra flattened dispersion of −1.65∼−0.335 ps/nm/km and confinement loss in super low order of 10−4dB/km are simultaneously obtained ranging from 1.45µm to 1.65µm. It's shown that through numerical analysis the novel micro-structured optical fiber with small normal group-velocity dispersion and nearly zero dispersion slope offers the possibility of efficient supercontinuum generation in the telecommunication window using a few ps pulse. supercontinuum with 70nm-bandwidth at 1550nm is achieved through only 150m-long fiber.

Published in:

Communications and Photonics Conference and Exhibition (ACP), 2009 Asia  (Volume:2009-Supplement )

Date of Conference:

2-6 Nov. 2009