Nanostructured Active Fiber for Mode-Locked and Q-Switched All-Fiber Laser Systems

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F25%3A00638793" target="_blank" >RIV/67985882:_____/25:00638793 - isvavai.cz</a>

Výsledek na webu

<a href="https://doi.org/10.1109/JLT.2025.3569693" target="_blank" >https://doi.org/10.1109/JLT.2025.3569693</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1109/JLT.2025.3569693" target="_blank" >10.1109/JLT.2025.3569693</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Nanostructured Active Fiber for Mode-Locked and Q-Switched All-Fiber Laser Systems

Popis výsledku v původním jazyce

Mode-locked and Q-switched all-fiber lasers using nanostructured core silica fiber are demonstrated. A novel active fiber has been developed, consisting of a collection of discrete nanorods doped with ytterbium and erbium within an aluminosilicate matrix. The arrangement of nanorods within the fiber core dictates the spatial distribution of amplification and refractive index, enabling the tailored design of the fiber's modal characteristics and dispersion properties. We demonstrate that the employed pumping strategy, which involves stimulating Yb3+ ions situated in nanorods and leveraging a non-radiative energy transfer from Yb3+ to Er3+ ions in distinct nanorods, is effective. This approach facilitates efficient laser performance comparable to fibers with a continuous dispersion of active ions throughout the core. The femtosecond mode-locked pulse at wavelength of 1560 nm, featuring a bandwidth of 5.2 nm, a pulse duration of 860 femtoseconds, and an RF spectral purity with an extinction ratio of 80 dB has been successfully obtained. These results underscore the potential of the nanostructured core fiber concept as an active medium in ultrafast, all-fiber devices

Název v anglickém jazyce

Nanostructured Active Fiber for Mode-Locked and Q-Switched All-Fiber Laser Systems

Popis výsledku anglicky

Mode-locked and Q-switched all-fiber lasers using nanostructured core silica fiber are demonstrated. A novel active fiber has been developed, consisting of a collection of discrete nanorods doped with ytterbium and erbium within an aluminosilicate matrix. The arrangement of nanorods within the fiber core dictates the spatial distribution of amplification and refractive index, enabling the tailored design of the fiber's modal characteristics and dispersion properties. We demonstrate that the employed pumping strategy, which involves stimulating Yb3+ ions situated in nanorods and leveraging a non-radiative energy transfer from Yb3+ to Er3+ ions in distinct nanorods, is effective. This approach facilitates efficient laser performance comparable to fibers with a continuous dispersion of active ions throughout the core. The femtosecond mode-locked pulse at wavelength of 1560 nm, featuring a bandwidth of 5.2 nm, a pulse duration of 860 femtoseconds, and an RF spectral purity with an extinction ratio of 80 dB has been successfully obtained. These results underscore the potential of the nanostructured core fiber concept as an active medium in ultrafast, all-fiber devices

Druh

J_imp - Článek v periodiku v databázi Web of Science

CEP obor

—

OECD FORD obor

10306 - Optics (including laser optics and quantum optics)

Projekt

Výsledek vznikl pri realizaci vícero projektů. Více informací v záložce Projekty.

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2025

Kód důvěrnosti údajů

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

Název periodika

Journal of Lightwave Technology

ISSN

0733-8724

e-ISSN

1558-2213

Svazek periodika

43

Číslo periodika v rámci svazku

15

Stát vydavatele periodika

US - Spojené státy americké

Počet stran výsledku

7

Strana od-do

7322-7328

Kód UT WoS článku

001560637100023

EID výsledku v databázi Scopus

2-s2.0-105005194890