Processing and characterization of silver films used to fabricate hollow glass waveguides

被引：51

作者：

Rabii, CD ^{[1
]}

Gibson, DJ ^{[1
]}

Harrington, JA ^{[1
]}

机构：

[1] Rutgers State Univ, Piscataway, NJ 08854 USA

来源：

APPLIED OPTICS | 1999年 / 38卷 / 21期

关键词：

D O I：

10.1364/AO.38.004486

中图分类号：

O43 [光学];

学科分类号：

070207 ; 0803 ;

摘要：

Hollow glass waveguides are an increasingly popular fiber for the delivery of high-power IR laser radiation. At CO2 laser wavelengths the measured and theoretical losses agree, but at the 3-mu m Er:YAG laser wavelength the losses remain higher than expected. The reason for this is the surface roughness of the silver film used to form the first layer of the Ag/AgI thin-film structure. We found that the roughness of the silver film increases fivefold as silvering times increase from 5 to 80 min. This increased surface roughness produces a concomitant linear increase in the attenuation coefficient for the silver-only guides for wavelengths shorter than approximately 5 mu m. (C) 1999 Optical Society of America. OCIS codes: 060.2390, 140.3510, 230.7370.

引用

页码：4486 / 4493

页数：8

共 22 条

[1] Polymer-coated hollow fiber for CO2 laser delivery [J].