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

Result code in 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>

Result on the web

<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>

Result language

angličtina

Original language name

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

Original language description

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.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

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OECD FORD branch

20201 - Electrical and electronic engineering

Project

<a href="/en/project/EF16_019%2F0000778" target="_blank" >EF16_019/0000778: Center for advanced applied science</a><br>

Continuities

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

Publication year

2023

Confidentiality

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

Article name in the collection

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

ISBN

9781510659032

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

6

Pages from-to

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Publisher name

SPIE

Place of publication

Bellingham (stát Washington)

Event location

San Francisco, California

Event date

Jan 28, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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