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Proceedings Paper

Nd:YAG laser for a Biolaser-1 ophthalmic system
Author(s): C. Cotirlan; Marina Mustata; Sorin Miclos; Dan Savastru; Esofina Ristici; Doina Dimulescu; M. Garais
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Paper Abstract

An ophthalmic surgical instrument is presented. It contains a specific Q-switch YAG:Nd laser, an optical stereomicroscope, two red output laser diodes and a digital system for optical processing of the microscope images. As Q-switch, a Cr4+:YAG crystal is used. It works in monopulse or double pulse regime. Four red spots mark the optical object plane. The laser beam is sent in the central part, between four spots and is focused at 150 microns behind the optical plane to reduce the risk of pitting the lens when performing posterior capsulotomies. In order to obtain eleven different energy levels in the (2÷10)mJ domain, eleven attenuators are used. The laser ophthalmic system must fulfill many precautions. The energy level, the pulse length and the used attenuators must have such values to eliminate every undesired effect in the medical applications. This instrument has an important application in posterior capsulotomies and posterior membranectomies.

Paper Details

Date Published: 21 October 2004
PDF: 8 pages
Proc. SPIE 5581, ROMOPTO 2003: Seventh Conference on Optics, (21 October 2004); doi: 10.1117/12.598042
Show Author Affiliations
C. Cotirlan, National Institute of Research & Development for Optoelectronics (Romania)
Marina Mustata, National Institute of Research & Development for Optoelectronics (Romania)
Sorin Miclos, National Institute of Research & Development for Optoelectronics (Romania)
Dan Savastru, National Institute of Research & Development for Optoelectronics (Romania)
Esofina Ristici, National Institute of Research & Development for Optoelectronics (Romania)
Doina Dimulescu, IOR S.A. (Romania)
M. Garais, IOR S.A. (Romania)


Published in SPIE Proceedings Vol. 5581:
ROMOPTO 2003: Seventh Conference on Optics

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