Experimental and scalar beam propagation analysis of an air-silica microstructure fiber

被引：48

作者：

Kerbage, CE ^{[1
]}

Eggleton, BJ ^{[1
]}

Westbrook, PS ^{[1
]}

Windeler, RS ^{[1
]}

机构：

[1] Lucent Technol, Bell Labs, Murray Hill, NJ 07974 USA

来源：

OPTICS EXPRESS | 2000年 / 7卷 / 03期

关键词：

D O I：

10.1364/OE.7.000113

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

We study the higher order guided modes in an air-silica microstructure fiber comprising a ring of six large air-holes surrounding a Germanium doped core. We characterize the modes experimentally using an intra-core Bragg grating. The experimentally observed modes are then accurately modeled by beam propagation simulations using an index profile similar to the observed fiber cross section. Theory and experiment confirm the presence of "inner cladding" modes with approximate cylindrical symmetry near the core, similar to conventional cladding modes, but which strongly exhibit the symmetry of the microstructure at large radius. Such modes are useful in fabricating robust tunable grating filters and we show that the Bragg grating is a useful diagnostic to measure their effective indices and intensity profiles. (C)2000 Optical Society of America.

引用

页码：113 / 122

页数：10

共 16 条

[1] Electrically tunable efficient broad-band fiber filter [J].