| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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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 |
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| Cite this article: |
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WANG Wei, HOU Lan-Tian, LU Ming et al 2009 Chin. Phys. Lett. 26 114205 |
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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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| Keywords:
42.65.-k
42.81.-i
42.81.Qb
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Received: 25 May 2009
Published: 30 October 2009
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