Dispersion tailoring and compensation by modal interactions in OmniGuide fibers

被引:98
作者
Engeness, TD [1 ]
Ibanescu, M [1 ]
Johnson, SG [1 ]
Weisberg, O [1 ]
Skorobogatiy, M [1 ]
Jacobs, S [1 ]
Fink, Y [1 ]
机构
[1] OmniGuide Commun, Cambridge, MA 02139 USA
来源
OPTICS EXPRESS | 2003年 / 11卷 / 10期
关键词
D O I
10.1364/OE.11.001175
中图分类号
O43 [光学];
学科分类号
070207 ; 0803 ;
摘要
We present a method for dispersion-tailoring of OmniGuide and other photonic band-gap guided fibers based on weak interactions ("anticrossings") between the core-guided mode and a mode localized in an intentionally introduced defect of the crystal. Because the core mode can be guided in air and the defect mode in a much higher-index material, we are able to obtain dispersion parameters in excess of 500,000 ps/nm-km. Furthermore, because the dispersion is controlled entirely by geometric parameters and not by material dispersion, it is easily tunable by structural choices and fiber-drawing speed. So, for example, we demonstrate how the large dispersion can be made to coincide with a dispersion slope that matches commercial silica fibers to better than 1%, promising efficient compensation. Other parameters are shown to yield dispersion-free transmission in a hollow OmniGuide fiber that also maintains low losses and negligible nonlinearities, with a nondegenerate TE01 mode immune to polarization-mode dispersion (PMD). We present theoretical calculations for a chalcogenide-based material system that has recently been experimentally drawn. (C) 2003 Optical Society of America.
引用
收藏
页码:1175 / 1196
页数:22
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