Title :
Loss Characteristics of Single-HE11 -Mode Bragg Fiber
Author :
Xu, Guangyu ; Zhang, Wei ; Huang, Yidong ; Peng, Jiangde
Author_Institution :
Dept. of Electron. Eng., Tsinghua Univ., Beijing
Abstract :
The loss characteristics of two kinds of typical single-HE11 -mode Bragg fibers based on PES/As2Se3 and Si/SiO2- multilayer claddings are analyzed theoretically. The available lowest loss levels and corresponding structure parameters of the two single-HE11-mode Bragg fiber are optimized to show the feasibility of the low-loss single-HE11-mode Bragg fiber design under the two material systems. The influences of structure parameters on the loss characteristics are analyzed in detail. For PES/As2Se3 Bragg fiber, a loss level as high as 10 5-107 dB/km is expected at wavelengths from 0.85 to 2.94 mum due to the large absorption loss. To extend the limitation, lower loss cladding material should be investigated. For Si/SiO2 Bragg fiber, low-loss single- HE11-mode propagation can be achieved by the materials if fabrication improvement can support long fabricated fiber length
Keywords :
Bragg gratings; arsenic compounds; optical fibre cladding; optical fibre losses; optical multilayers; silicon; silicon compounds; As2Se3; Bragg fiber losses; PES/As2Se3 multilayer claddings; Si-SiO2; Si-SiO2 multilayer claddings; absorption loss; Absorption; Design optimization; Gaussian distribution; Lattices; Nonhomogeneous media; Optical fiber devices; Optical fiber losses; Optical losses; Optical waveguides; Tellurium; Bragg fiber; modal loss; photonic band gap; s ingle mode;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2006.886673
