ATTENUATION OF INCOHERENT INFRARED RADIATION IN HOLLOW SAPPHIRE AND SILICA WAVE-GUIDES

被引：36

作者：

SAGGESE, SJ

HARRINGTON, JA

SIGEL, GH

机构：

[1] Rutgers University, Piscataway, NJ

来源：

OPTICS LETTERS | 1991年 / 16卷 / 01期

关键词：

D O I：

10.1364/OL.16.000027

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

The attenuation of incoherent infrared radiation for wavelengths from 6 to 20-mu-m was investigated for hollow sapphire and silica waveguides suitable for applications in spectroscopy and thermometry. A low-attenuation region was exhibited between 9.6 and 17.2-mu-m for hollow sapphire fibers and between 7.25 and 9.5-mu-m for hollow silica fibers as a result of the cladding index of refraction dipping below that of the air core (n almost-equal-to 1). Losses have been characterized as a function of fiber diameter, launch conditions, and waveguide bend radius for cladding regions of both n > 1 and n < 1. In addition, the remote infrared sensing capability of the hollow waveguides was demonstrated by the detection of CO2 in N2 by utilizing hollow sapphire fibers capped with ZnSe windows.

引用

页码：27 / 29

页数：3

共 17 条

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