Thermo-optical feedback in laser medical systems: control algorithms

Andrei V. Belikov; Constantin V. Prikhodko

doi:10.1117/12.413777

30 January 2001 Thermo-optical feedback in laser medical systems: control algorithms

Andrei V. Belikov, Constantin V. Prikhodko

Proceedings Volume 4157, Laser-Assisted Microtechnology 2000; (2001) https://doi.org/10.1117/12.413777
Event: Laser-Assisted Microtechnology 2000, 2000, St. Petersburg-Pushkin, Russian Federation

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.

Citation Download Citation

Andrei V. Belikov and Constantin V. Prikhodko "Thermo-optical feedback in laser medical systems: control algorithms", Proc. SPIE 4157, Laser-Assisted Microtechnology 2000, (30 January 2001); https://doi.org/10.1117/12.413777

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