Design of Double Cladding Nearly Zero Dispersion Flattened Nonlinear Photonic Crystal Fiber
WANG Wei, HOU Lan-Tian1,2, LU Ming1, ZHOU Gui-Yao1,2
1The College of Information Science and Engineering, Yanshan University, Qinhuangdao 0660042Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004
Design of Double Cladding Nearly Zero Dispersion Flattened Nonlinear Photonic Crystal Fiber
WANG Wei, HOU Lan-Tian1,2, LU Ming1, ZHOU Gui-Yao1,2
1The College of Information Science and Engineering, Yanshan University, Qinhuangdao 0660042Key Laboratory of Metastable Materials Science and Technology, Yanshan University, Qinhuangdao 066004
摘要We present a design of double cladding nearly zero dispersion flattened nonlinear photonic crystal fiber (PCF) with the core consisting of seven missing holes. The dispersion of the designed PCF fluctuates from -0.28 to 0.29ps・km-1・nm-1 in the range of 1.35-1.795μm and the dispersion slope is -0.0038ps・km-1・nm-2 at 1.55μm. Due to its small air-hole to air-hole pitch in the inner cladding, the effective mode area is 6.48μm2 and the effective nonlinearity γ is as high as 13.78W-1km-1 at 1.55μm. Two layers of air-hole rings in the outer cladding ensures the loss of the fundamental mode to be 2.9dB/km at 1.55μm and two more air-hole rings can further reduce the fundamental mode's loss to the level of 4.2×10-3,dB/km.
Abstract：We present a design of double cladding nearly zero dispersion flattened nonlinear photonic crystal fiber (PCF) with the core consisting of seven missing holes. The dispersion of the designed PCF fluctuates from -0.28 to 0.29ps・km-1・nm-1 in the range of 1.35-1.795μm and the dispersion slope is -0.0038ps・km-1・nm-2 at 1.55μm. Due to its small air-hole to air-hole pitch in the inner cladding, the effective mode area is 6.48μm2 and the effective nonlinearity γ is as high as 13.78W-1km-1 at 1.55μm. Two layers of air-hole rings in the outer cladding ensures the loss of the fundamental mode to be 2.9dB/km at 1.55μm and two more air-hole rings can further reduce the fundamental mode's loss to the level of 4.2×10-3,dB/km.
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2009, Vol. 26 
