Fibers and fiber end sealing caps for Er:YAG laser ablation

Kotsifaki, DG; Makropoulou, M; Serafetinides, AA

dc.contributor.author	Kotsifaki, DG	en
dc.contributor.author	Makropoulou, M	en
dc.contributor.author	Serafetinides, AA	en
dc.date.accessioned	2014-03-01T02:53:17Z
dc.date.available	2014-03-01T02:53:17Z
dc.date.issued	2011	en
dc.identifier.issn	0277786X	en
dc.identifier.uri	https://dspace.lib.ntua.gr/xmlui/handle/123456789/36210
dc.subject	Fluoride glass optical fibers	en
dc.subject	Q-switched er:yag laser	en
dc.subject	Sealing caps	en
dc.subject.other	Absorption loss	en
dc.subject.other	Beam divergence	en
dc.subject.other	Convex geometry	en
dc.subject.other	Delivery systems	en
dc.subject.other	End-sealing caps	en
dc.subject.other	Energy loss	en
dc.subject.other	Er:YAG laser light	en
dc.subject.other	Er:YAG lasers	en
dc.subject.other	Fluoride glass	en
dc.subject.other	Fluoride glass fiber	en
dc.subject.other	Laser sources	en
dc.subject.other	Mean values	en
dc.subject.other	Mid-infrared wavelengths	en
dc.subject.other	Midinfrared	en
dc.subject.other	Pulse durations	en
dc.subject.other	Q-switched	en
dc.subject.other	Repetition rate	en
dc.subject.other	Sealing caps	en
dc.subject.other	Silica glass fibers	en
dc.subject.other	Temporal energy distribution	en
dc.subject.other	Transmission loss	en
dc.subject.other	Transmission medium	en
dc.subject.other	Wavelength beam	en
dc.subject.other	Ablation	en
dc.subject.other	Domes	en
dc.subject.other	Electron optics	en
dc.subject.other	Energy dissipation	en
dc.subject.other	Erbium	en
dc.subject.other	Fiber optics	en
dc.subject.other	Fibers	en
dc.subject.other	Geometry	en
dc.subject.other	Glass fibers	en
dc.subject.other	Glass lasers	en
dc.subject.other	Infrared devices	en
dc.subject.other	Laser surgery	en
dc.subject.other	Optical fibers	en
dc.subject.other	Pulse repetition rate	en
dc.subject.other	Q switching	en
dc.subject.other	Quantum electronics	en
dc.subject.other	Quartz	en
dc.subject.other	Silica	en
dc.subject.other	Spatial distribution	en
dc.subject.other	Infrared lasers	en
dc.title	Fibers and fiber end sealing caps for Er:YAG laser ablation	en
heal.type	conferenceItem	en
heal.identifier.primary	10.1117/12.881477	en
heal.identifier.secondary	http://dx.doi.org/10.1117/12.881477	en
heal.identifier.secondary	77470Z	en
heal.publicationDate	2011	en
heal.abstract	considerable interest, in the recent years, has been allocated in the mid-infrared Er:YAG laser surgery and microsurgery. This interest has been increased after the development of optical fibers and waveguides, for safe and efficient transmission of the ∼3.0 μm wavelength beams. On the other hand, a laser delivery system based on common silica glass fibers and caps are not applicable for delivery of the Er:YAG laser light, due to high absorption losses at the mid-infrared wavelengths. Thus, fluoride glass fibers and sealing quartz caps is a promising combination for laser delivery due to their low transmission loss. In this study, we investigated the properties of three sealing quartz caps, suitable for fluoride glass optical fibers, with various distal end geometries, in order to evaluate the attenuation and the spatial and temporal energy distribution of the transmitted laser radiation. Moreover, we evaluated the experimental beam divergence of the sealing caps. As a transmission medium, three fluoride glass optical fibers were used. As a laser source we used a Q-switched Er:YAG laser with a pulse duration of 190 ns and a repetition rate of 1 Hz. The mean value of the energy loss for dome geometry was found (0.73 ± 0.03), for planoconvex geometry was found (0.76 ± 0.03) and for ball geometry was found (0.73 ± 0.05). The beam divergence was found (62.4 ± 0.1) mrad, (156.2 ± 0.3) mrad and (37.5 ± 0.5) mrad for dome, ball and plano-convex geometry, respectively. © 2011 SPIE.	en
heal.journalName	Proceedings of SPIE - The International Society for Optical Engineering	en
dc.identifier.doi	10.1117/12.881477	en
dc.identifier.volume	7747	en