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Proceedings Paper

Thermo-optical feedback in laser medical systems: control algorithms
Author(s): Andrei V. Belikov; Constantin V. Prikhodko
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Paper Abstract

The paper considers a number of principle algorithms to control feedback systems in submillisecond pulsed lasers designed for biological tissue treatment and having absorption coefficient within 0.1 cm-1 - 100cm-1. Feedback for those laser systems is based upon an analysis of amplitude and frequency characteristics of a thermo optical signal going along with a treatment of a tissue. Herewith some samples of thermo optical feedback algorithm realization for medical laser systems are presented. For the first time the paper demonstrates a must of a proportional change of laser radiation energy to a first variable of thermo optical signal amplitude signal amplitude in feedback systems at stabilized laser wound parameters.

Paper Details

Date Published: 30 January 2001
PDF: 6 pages
Proc. SPIE 4157, Laser-Assisted Microtechnology 2000, (30 January 2001); doi: 10.1117/12.413777
Show Author Affiliations
Andrei V. Belikov, St. Petersburg Institute of Fine Mechanics and Optics (Russia)
Constantin V. Prikhodko, St. Petersburg Institute of Fine Mechanics and Optics (Russia)


Published in SPIE Proceedings Vol. 4157:
Laser-Assisted Microtechnology 2000
Vadim P. Veiko, Editor(s)

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