Nanocrystalline ceramic coatings for the capillary fiber lasers

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F23%3A00583635" target="_blank" >RIV/67985882:_____/23:00583635 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2665632" target="_blank" >http://dx.doi.org/10.1117/12.2665632</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2665632" target="_blank" >10.1117/12.2665632</a>

Result language

angličtina

Original language name

Nanocrystalline ceramic coatings for the capillary fiber lasers

Original language description

Nanocrystalline holmium-doped titanates have been widely investigated for their luminescence properties. Low-phonon pyrochlore lattice supports the radiative energy transfers improving the efficiency of high-power lasers and amplifiers operating around 2 μm. However, the chemical reactivity toward the silica prevents the incorporation of ceramic nanoparticles in common optical fibers. Deposition of active ceramic layer on the inner wall of capillary or hollow core fiber represents a promising alternative. We present a versatile sol-gel route to active capillary fibers doped by nanocrystalline (Ho0.05La0.95)2Ti2O7. Nanocrystalline films with tailored properties were prepared by sol-gel method. The sols were coated on silica glass slides to receive a set of reference samples and soaked into silica capillary fibers making the coatings on the inner capillary wall. The presented approach led to the formation of homogenous nanocrystalline (Ho0.05La0.95)2Ti2O7 films with tailored nanocrystal size up to 87 nm and refractive index of about 2.2. All prepared samples showed an intensive emission at 2.0 μm under an excitation at 450 nm and the luminescence decay time of about 7.3 ms. The presented method enables the preparation of homogenous and highly transparent thin films with tailored properties. These films are suitable for preparation of bulk luminophores and planar active optical components operating at 2 μm

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

10306 - Optics (including laser optics and quantum optics)

Project

<a href="/en/project/GA22-17604S" target="_blank" >GA22-17604S: Transparent ceramics optical fibers for lasers operating around 2.9 µm</a><br>

Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2023

Confidentiality

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

Article name in the collection

Proceedings of SPIE - The International Society for Optical Engineering

ISBN

978-151066266-7

ISSN

0277-786X

e-ISSN

1996-756X

Number of pages

7

Pages from-to

125730X

Publisher name

SPIE

Place of publication

Bellingham

Event location

Praha

Event date

Apr 24, 2023

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

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