Continuous-wave generation and tunability of eye-safe resonantly diode-pumped Er:YAG laser

Result code in IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F16%3A00304675" target="_blank" >RIV/68407700:21340/16:00304675 - isvavai.cz</a>

Result on the web

<a href="http://dx.doi.org/10.1117/12.2207447" target="_blank" >http://dx.doi.org/10.1117/12.2207447</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1117/12.2207447" target="_blank" >10.1117/12.2207447</a>

Result language

angličtina

Original language name

Continuous-wave generation and tunability of eye-safe resonantly diode-pumped Er:YAG laser

Original language description

Laser sources generating radiation in the spectral range from 1.5 to 1.7 μm are very attractive for many applications such as satellite communication, range finding, spectroscopy, and atmospheric sensing. The goal of our research was an investigation of continuous-wave generation and wavelength tuning possibility of diode pumped eye-safe Er:YAG laser emitting radiation around 1645 nm. We used two 0.5 at. % doped Er:YAG active media with lengths of 10 mm and 25 mm (diameter 5 mm). As a pumping source, a fibre-coupled 1452 nm laser-diode was utilized, which giving possibility of the in-band pumping with a small quantum defect and low thermal stress of the active bulk laser material. The 150 mm long resonator was formed by a pump mirror (HT @ 1450 nm, HR @ 1610 - 1660 nm) and output coupler with 96 % reflectivity at 1610 - 1660 nm. For continuous-wave generation, the maximal output powers were 0.7 W and 1 W for 10 mm and 25 mm long laser crystals, respectively. The corresponding slope efficiencies with respect to absorbed pump power for these Er:YAG lasers were 26.5 % and 37.8 %, respectively. The beam spatial structure was close to the fundamental Gaussian mode. A wavelength tunability was realized by a birefringent plate and four local spectral maxima at 1616, 1633, 1645, and 1657 nm were reached.

Czech name

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Czech description

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Type

D - Article in proceedings

CEP classification

JA - Electronics and optoelectronics

OECD FORD branch

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Project

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Continuities

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Publication year

2016

Confidentiality

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

Article name in the collection

Proc. SPIE 9726, Solid State Lasers XXV: Technology and Devices

ISBN

978-1-62841-961-0

ISSN

0277-786X

e-ISSN

—

Number of pages

7

Pages from-to

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Publisher name

SPIE

Place of publication

Bellingham (stát Washington)

Event location

San Francisco

Event date

Feb 13, 2016

Type of event by nationality

WRD - Celosvětová akce

UT code for WoS article

000383765300034