Laser-fibre system for ablation of intraocular tissue using the fourth harmonic of a pulsed Nd:YAG laser

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Abstract

We report on a method for delivering high fluence pulsed 266 nm laser radiation to the target tissue via an optical fiber. The fourth harmonic of a Nd:YAG laser was concentrated using a hollow glass taper and launched into an optical fiber. Fluences of up to 2 J/cm2 were routinely output at the tapered optical fiber tip. The maximum fluence generated before failure of the optical fiber was between 3.5 and 8 J/cm2. Ablation of ocular tissue was demonstrated using fluences of 1.0 and 0.4 J/cm2. The delivery system has the potential for use in intraocular surgical procedures.© 2007 Optical Society of America
Original languageEnglish
Pages (from-to)413-420
JournalApplied Optics
Volume46
Issue number3
DOIs
Publication statusPublished - 2007

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