Mid-IR germanium oxide fibers for Erbium:YAG and Erbium:YSGG contact laser tissue ablation in endourology

被引：0

作者：

Seott, Nicholas J. ^{[1
]}

Barton, Robert A. ^{[1
]}

Casperson, Andrew L. ^{[1
]}

Tchapyjnikov, Alexei ^{[2
]}

Levin, Ken ^{[2
]}

Tran, Danh ^{[2
]}

Fried, Nathaniel M. ^{[1
]}

机构：

[1] Univ N Carolina, Dept Phys & Opt Sci, Charlotte, NC 28223 USA

[2] Infrared Fiber Syst Inc, Silver Spring, MD USA

来源：

PHOTONIC THERAPEUTICS AND DIAGNOSTICS IV | 2008年 / 6842卷

基金：

美国国家卫生研究院;

关键词：

endoscopic; Erbium; Erbium : YAG; Erbium : YSGG; fiber; germanium oxide; mid-infrared; sapphire;

D O I：

10.1117/12.760961

中图分类号：

Q6 [生物物理学];

学科分类号：

071011 ;

摘要：

Endoscopic surgical applications of Erbium:YAG and Erbium:YSGG lasers have been limited due to the lack of a suitable mid-IR optical fiber delivery system. Germanium oxide fibers are currently used in the clinic for non-contact tissue ablation, but are not recommended for contact tissue ablation applications typically required during endoscopic surgery in a fluid environment. This study describes the assembly and characterization of hybrid mid-IR fibers consisting of germanium oxide trunk fibers and sapphire fiber tips, and side-firing germanium oxide fibers with either 45 degrees angled fiber tips or micro-mirrors. Average powers up to 8.5 W (850 mJ at 10 Hz) and transmission up to 70% was demonstrated through 450-mu m-core, 1.5-meter-long fibers, sufficient for endoscopic laser ablation of soft and hard tissues in contact mode.

引用

页数：7

共 32 条

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