Reduction of coupling loss to photonic crystal fibers by controlled hole collapse:: a numerical study

被引：20

作者：

Lægsgaard, J ^{[1
]}

Bjarklev, A ^{[1
]}

机构：

[1] Tech Univ Denmark, COM Res Ctr, DK-2800 Lyngby, Denmark

来源：

OPTICS COMMUNICATIONS | 2004年 / 237卷 / 4-6期

关键词：

nonlinear waveguides; fiber waveguides;

D O I：

10.1016/j.optcom.2004.04.002

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The mode profile evolution of small-core photonic crystal fibers (PCFs) during a gradual collapse of the cladding airholes is investigated. The mode overlap with standard step-index fibers having a small index contrast is calculated, and it is found that overlaps around 90% can be achieved in all cases studied, with the proper degree of hole collapse. Thus, hole collapse induced by, e.g. laser irradiation could prove an efficient and practical way of reducing splice losses when coupling small-core PCFs to other fiber types. (C) 2004 Elsevier B.V. All rights reserved.

引用

页码：431 / 435

页数：5

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