Chinese Optics Letters, 2013, 11 (s2): S20604, Published Online: Aug. 22, 2013
Octagonal dual-concentric-core photonic crystal fiber for C-band dispersion compensation with low conf inement loss Download: 909次
060.0060 Fiber optics and optical communications 220.0220 Optical design and fabrication 230.0230 Optical devices
Abstract
A novel kind of octagonal dual-concentric-core photonic crystal fiber (PCF) is calculated with the finite element method (FEM) and proposed for broadband compensation. In order to realize highly negative dispersion, the hole diameter of the second ring is reduced relative to conventional PCFs. Numerical simulation results show that when the diameters of large holes and small holes are 0.77 \mu m and 0.5 \mu m, respectively, and the pitch of the adjacent rings is 1.1 μm, the negative dispersion can achieve about –840 ps.nm-1.km-1 at 1 550 nm and the dispersion slope can match with single mode fiber (SMF-28) perfectly. This PCF can compensate the positive dispersion and also its slope of about 50 times its length of SMF-28 fiber, which is suitable for C-band optical fiber telecommunication as a dispersion compensation fiber.
Wenbin Liang, Ningliang Liu, Zhihua Li, Peixiang Lu. Octagonal dual-concentric-core photonic crystal fiber for C-band dispersion compensation with low conf inement loss[J]. Chinese Optics Letters, 2013, 11(s2): S20604.