Analysis of waveguide dispersion characteristics of WI- and WII-type triple-clad single-mode fibers

✍ Scribed by Xiaoping Zhang; Xiangqing Tian

• Publisher: Elsevier Science
• Year: 2003
• Tongue: English
• Weight: 179 KB
• Volume: 35
• Category: Article
• ISSN: 0030-3992
• DOI: 10.1016/s0030-3992(02)00175-5

✦ Synopsis

Waveguide dispersion characteristics of two kinds of triple-clad single-mode ÿbers named WI and WII were examined in this paper. In view of the impossibility to deduce the expression of waveguide dispersion directly due to the complexity of the characteristic equations, a feasible approach to calculate waveguide dispersion was established. The calculated results indicate that the adjustable range of the zero-dispersion point of the triple-clad WI-and WII-type single-mode ÿbers is obviously wider than that of the conventional doubly clad W-type single-mode ÿbers in the same conditions. The in uences made by the geometric parameters and optical parameters on the waveguide dispersion and cuto characteristics of low-order modes for WI-and WII-type ÿbers were analyzed. The method presented to calculate waveguide dispersion can be applied to multi-clad ÿbers.