Diode-Pumped Actively Mode-Locked Tm:YLF Laser

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F68407700%3A21340%2F14%3A00228446" target="_blank" >RIV/68407700:21340/14:00228446 - isvavai.cz</a>

Výsledek na webu

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DOI - Digital Object Identifier

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Jazyk výsledku

angličtina

Název v původním jazyce

Diode-Pumped Actively Mode-Locked Tm:YLF Laser

Popis výsledku v původním jazyce

In this paper we report on an actively mode-locked laser oscillator with 3.5 at.% Tmdoped LiYF4 crystal as the active medium. In the free-running regime this laser emerged as an efficient source of radiation at 1.91 m wavelength. In quasi-CW regime we achieved slope efficiency of 37.3 % and overall optical efficiency of 34 %. In true-CW operation the efficiency somewhat deteriorated (slope 25.5 %, optical-to-optical efficiency 23.5 %), giving maximal output power of 4.4 W, which was limited by the damage threshold of laser crystal and should be further scalable. Generated wavelength was 1.908 m and was tunable via birefringent plate in range between 1880 nm and 1980 nm. To the best of our knowledge, active mode-locking of Tm:YLF laser was achieved forthe first time. Using an acousto-optic modulator stable train of pulses at 1.91 m with repetition rate of 149.7 MHz and duration of 220 ps was obtained. The maximum output power was 2.6 W (incident pump power 19.6 W, optical efficiency 13

Název v anglickém jazyce

Diode-Pumped Actively Mode-Locked Tm:YLF Laser

Popis výsledku anglicky

In this paper we report on an actively mode-locked laser oscillator with 3.5 at.% Tmdoped LiYF4 crystal as the active medium. In the free-running regime this laser emerged as an efficient source of radiation at 1.91 m wavelength. In quasi-CW regime we achieved slope efficiency of 37.3 % and overall optical efficiency of 34 %. In true-CW operation the efficiency somewhat deteriorated (slope 25.5 %, optical-to-optical efficiency 23.5 %), giving maximal output power of 4.4 W, which was limited by the damage threshold of laser crystal and should be further scalable. Generated wavelength was 1.908 m and was tunable via birefringent plate in range between 1880 nm and 1980 nm. To the best of our knowledge, active mode-locking of Tm:YLF laser was achieved forthe first time. Using an acousto-optic modulator stable train of pulses at 1.91 m with repetition rate of 149.7 MHz and duration of 220 ps was obtained. The maximum output power was 2.6 W (incident pump power 19.6 W, optical efficiency 13

Druh

O - Ostatní výsledky

CEP obor

JA - Elektronika a optoelektronika, elektrotechnika

OECD FORD obor

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Projekt

<a href="/cs/project/GA13-08888S" target="_blank" >GA13-08888S: Diodově buzené pikosekundové pevnolátkové lasery</a><br>

Návaznosti

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

Rok uplatnění

2014

Kód důvěrnosti údajů

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