Q-switched Er:YAG radiation transmission through an oxide glass fiber for medical applications

Papadopoulos, DN; Papagiakoumou, E; Serafetinides, AA

dc.contributor.author	Papadopoulos, DN	en
dc.contributor.author	Papagiakoumou, E	en
dc.contributor.author	Serafetinides, AA	en
dc.date.accessioned	2014-03-01T02:49:15Z
dc.date.available	2014-03-01T02:49:15Z
dc.date.issued	2002	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/34451
dc.subject	Er:YAG laser	en
dc.subject	Mid-IR fibers	en
dc.subject	Oxide glass	en
dc.subject	Q-switching	en
dc.subject.other	Doping (additives)	en
dc.subject.other	Erbium	en
dc.subject.other	Glass fibers	en
dc.subject.other	Medical applications	en
dc.subject.other	Relaxation processes	en
dc.subject.other	Thermal diffusion	en
dc.subject.other	Tissue	en
dc.subject.other	Vaporization	en
dc.subject.other	Water absorption	en
dc.subject.other	Yttrium compounds	en
dc.subject.other	Laser radiation	en
dc.subject.other	Oxide glass fiber	en
dc.subject.other	Yttrium aluminum garnet	en
dc.subject.other	Q switched lasers	en
dc.title	Q-switched Er:YAG radiation transmission through an oxide glass fiber for medical applications	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.482999	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.482999	en
heal.publicationDate	2002	en
heal.abstract	In the last few years, there has been an increasing interest for the 3 μm laser radiation in various medical applications, as this wavelength is strongly absorbed by the water and the other components of soft and hard tissue. An intensive development effort is going on throughout the world, in order to develop reliable lasers emitting in the 3 μm wavelength range. Our laser development effort with the Q-switched Er:YAG laser is briefly described in this article. Additionally for medical applications there is a great demand for good flexible delivery systems, in the mid-IR wavelength region. In this work the radiation transmission of a Q-switched Er:YAG laser, emitting at 2.94 μm, through high power (HP) oxide glass fibers of 450 μm core diameter was studied. Attenuation measurements were obtained as a function of the laser energy input and as a function of curvature, at 90°, 180° and 360° bending angle. The output beam quality was studied using a beam profiler. Experiments with the same delivery system transmitting free-running Er:YAG laser radiation, were performed for comparison. The results are promising for the delivery of Q-switched Er:YAG laser radiation, as the fibers exhibited attenuation of 0.7 dB/m, and no damage of them was observed.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.482999	en
dc.identifier.volume	4916	en
dc.identifier.spage	415	en
dc.identifier.epage	422	en