Acta Optica Sinica, Volume. 30, Issue 9, 2519(2010)
Numerical Analysis of Structural Optimization of a Novel LowLossPlastic Optical Fiber
Loss characteristics of antiresonant reflecting plastic optical fiber with cobweb structural cladding and its relationships with the structural parameters are analyzed in the wavelength 1.3 μm. The cladding of this optical fiber is equivalent to periodical multilayer films and numerically simulated by asymptotic transfer matrix method. The effects of the number of alternating layers N, the thickness of highindex layer d2 and index contrast n2∶n1 on the loss characteristics are analyzed to optimize the structural parameters. The numerical simulation results show that the mode loss decreases rapidly in the first and reaches a fixed value in the last as the N increases; the mode lesses increase linearly as the d2 increases; the larger the n2∶n1, the lower the loss at the anti resonant wavelength. On that basis, the thickness of the air layers d1 and the radius of the hollow core rco are optimized by simulated annealing optimization algorithm. Finally, by using above optimal combination of the structural parameters N3, d2=2.648 μm, n2∶n1=1.49∶1.0, d1=3 μm and rco=100 μm, the lowest loss calsulated is 0.449 dB/km。
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Chen Hongzhi, Yu Rongjin, Zhang Qinghui. Numerical Analysis of Structural Optimization of a Novel LowLossPlastic Optical Fiber[J]. Acta Optica Sinica, 2010, 30(9): 2519
Category: Fiber Optics and Optical Communications
Received: Nov. 2, 2009
Accepted: --
Published Online: May. 15, 2014
The Author Email: Hongzhi Chen (E-mail)