Delivery of Er:YAG laser radiation with repetition rate up to 150 Hz by a hollow glass waveguide

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F23%3A00367174" target="_blank" >RIV/68407700:21340/23:00367174 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1117/12.2647345" target="_blank" >https://doi.org/10.1117/12.2647345</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2647345" target="_blank" >10.1117/12.2647345</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Delivery of Er:YAG laser radiation with repetition rate up to 150 Hz by a hollow glass waveguide

Popis výsledku v původním jazyce

The use of lasers in many industrial or medical applications often requires the delivery of laser radiation from the laser system to the place of an exposure. One of the radiation transfer possibilities is the delivery of its by hollow glass waveguide. The fundamental advantage of this delivery media is the absence of the material through which the laser radiation is transferred. Other hollow waveguides properties are a possibility of delivery radiation in wide range of spectra, lossless delivery, non-toxicity, and low aging effect. This system is possible to use also for radiation which has strong absorption in water and therefore cannot be delivered through conventional glass fiber. Especially Er:YAG radiation which generated wavelength corresponding to maximum absorption in water and therefore it is extremely suitable for medical application. The aim of this study was to investigate radiation transmission for various parameters (repetition frequency, pulse length) of a commercially available diode-pumped Er:YAG laser. The special hollow glass waveguide with a cyclic olefin polymer coated silver layer has a length of 108 cm and an inner diameter of 700 µm. Radiation delivery as a function of laser input power and spatial distribution of output beams were investigated depending on pulse length from 100 µs to 400 µs and repetition frequency 20 Hz or 150 Hz. The transmission was achieved up to 86 % at a maximum amplitude of the output peak power of up to 406 W. The obtained results predetermine the use of this simple compact delivery laser system for further research with subsequent use in medicine.

Název v anglickém jazyce

Delivery of Er:YAG laser radiation with repetition rate up to 150 Hz by a hollow glass waveguide

Popis výsledku anglicky

The use of lasers in many industrial or medical applications often requires the delivery of laser radiation from the laser system to the place of an exposure. One of the radiation transfer possibilities is the delivery of its by hollow glass waveguide. The fundamental advantage of this delivery media is the absence of the material through which the laser radiation is transferred. Other hollow waveguides properties are a possibility of delivery radiation in wide range of spectra, lossless delivery, non-toxicity, and low aging effect. This system is possible to use also for radiation which has strong absorption in water and therefore cannot be delivered through conventional glass fiber. Especially Er:YAG radiation which generated wavelength corresponding to maximum absorption in water and therefore it is extremely suitable for medical application. The aim of this study was to investigate radiation transmission for various parameters (repetition frequency, pulse length) of a commercially available diode-pumped Er:YAG laser. The special hollow glass waveguide with a cyclic olefin polymer coated silver layer has a length of 108 cm and an inner diameter of 700 µm. Radiation delivery as a function of laser input power and spatial distribution of output beams were investigated depending on pulse length from 100 µs to 400 µs and repetition frequency 20 Hz or 150 Hz. The transmission was achieved up to 86 % at a maximum amplitude of the output peak power of up to 406 W. The obtained results predetermine the use of this simple compact delivery laser system for further research with subsequent use in medicine.

Druh

D - Stať ve sborníku

CEP obor

—

OECD FORD obor

20201 - Electrical and electronic engineering

Projekt

<a href="/cs/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Centrum pokročilých aplikovaných přírodních věd</a><br>

Návaznosti

P - Projekt vyzkumu a vyvoje financovany z verejnych zdroju (s odkazem do CEP)

Rok uplatnění

2023

Kód důvěrnosti údajů

S - Úplné a pravdivé údaje o projektu nepodléhají ochraně podle zvláštních právních předpisů

Název statě ve sborníku

Proc. SPIE 12399, Solid State Lasers XXXII: Technology and Devices

ISBN

9781510659032

ISSN

0277-786X

e-ISSN

1996-756X

Počet stran výsledku

6

Strana od-do

—

Název nakladatele

SPIE

Místo vydání

Bellingham (stát Washington)

Místo konání akce

San Francisco, California

Datum konání akce

28. 1. 2023

Typ akce podle státní příslušnosti

WRD - Celosvětová akce

Kód UT WoS článku

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