Highly-efficient Resonantly Diode-pumped 2 mu-m Thulium Lasers

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F21%3A00352591" target="_blank" >RIV/68407700:21340/21:00352591 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542205" target="_blank" >https://doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542205</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/CLEO/Europe-EQEC52157.2021.9542205" target="_blank" >10.1109/CLEO/Europe-EQEC52157.2021.9542205</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Highly-efficient Resonantly Diode-pumped 2 mu-m Thulium Lasers

Popis výsledku v původním jazyce

Tm-based lasers are direct sources of high-power radiation in 2-micron spectral region with applications in medicine, highresolution spectroscopy, and remote sensing. The long storage time of 3F4 upper laser level and efficient energy extraction could help to build high-energy, high-mean-power laser systems in a near future. Efficient high-power 2 um lasing, based on 0.8 um laser diode (LD) pumping at 3H6 - 3H4 transition, was previously attained in several Tm-doped hosts. The resonant Tm3+ excitation directly to the 3F4 is now possible thanks to commercially available high power (> 30 W) LD operating at 1.7 um spectral range. There are several benefits of this pumping scheme: even lower quantum defect of the pumping process (< 15 %); significantly broader absorption lines of 3H6 - 3F4 transition of Tm3+ comparing to 3H6 - 3H4 transition; eye-safety of pumping radiation. The goal of this work was an investigation of well-established crystalline Tm-laser materials Tm:YAG, Tm:YAP, and Tm:YLF operating at 2 um laser transition under longitudinal 1.7 um resonant CW LD pumping.

Název v anglickém jazyce

Highly-efficient Resonantly Diode-pumped 2 mu-m Thulium Lasers

Popis výsledku anglicky

Tm-based lasers are direct sources of high-power radiation in 2-micron spectral region with applications in medicine, highresolution spectroscopy, and remote sensing. The long storage time of 3F4 upper laser level and efficient energy extraction could help to build high-energy, high-mean-power laser systems in a near future. Efficient high-power 2 um lasing, based on 0.8 um laser diode (LD) pumping at 3H6 - 3H4 transition, was previously attained in several Tm-doped hosts. The resonant Tm3+ excitation directly to the 3F4 is now possible thanks to commercially available high power (> 30 W) LD operating at 1.7 um spectral range. There are several benefits of this pumping scheme: even lower quantum defect of the pumping process (< 15 %); significantly broader absorption lines of 3H6 - 3F4 transition of Tm3+ comparing to 3H6 - 3H4 transition; eye-safety of pumping radiation. The goal of this work was an investigation of well-established crystalline Tm-laser materials Tm:YAG, Tm:YAP, and Tm:YLF operating at 2 um laser transition under longitudinal 1.7 um resonant CW LD pumping.

Druh

O - Ostatní výsledky

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)<br>S - Specificky vyzkum na vysokych skolach

Rok uplatnění

2021

Kód důvěrnosti údajů

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