Gain-controlled broadband tuneability in self-mode-locked Thulium-doped fibre laser

Kód výsledku v IS VaVaI

<a href="https://www.isvavai.cz/riv?ss=detail&h=RIV%2F67985882%3A_____%2F22%3A00561096" target="_blank" >RIV/67985882:_____/22:00561096 - isvavai.cz</a>

Nalezeny alternativní kódy

RIV/60461373:22310/22:43925600

Výsledek na webu

<a href="https://doi.org/10.1038/s42005-022-00989-x" target="_blank" >https://doi.org/10.1038/s42005-022-00989-x</a>

DOI - Digital Object Identifier

<a href="http://dx.doi.org/10.1038/s42005-022-00989-x" target="_blank" >10.1038/s42005-022-00989-x</a>

Jazyk výsledku

angličtina

Název v původním jazyce

Gain-controlled broadband tuneability in self-mode-locked Thulium-doped fibre laser

Popis výsledku v původním jazyce

Ensuring self-driven mode-locking and broadband wavelength tuneability in all-fibre-integrated femtosecond laser sources enables a new level of their versatility and extends areas of their applications. Principle limitations for this are traditionally available ultrafast modulators and tuneability techniques. Here, we exploit Thulium-doped fibre to perform three roles in the cavity: laser gain, saturable absorber, and tuneability element via controlling its excitation level. We confirmed that Tm-doped fibre saturable absorption is defined by a reinforced quenching of Tm3+ pairs. As a result, we present both numerically and experimentally a highly stable sub-picosecond pulse generation with a similar to 90 nm tuneability range spanning from 1873 to 1962 nm via adjusting the cavity feedback. The maximum laser efficiency corresponds to 25% cavity feedback, enabling the highest output energy of 1 nJ in 600-fs solitons at 1877 nm. Overall, the presented laser system establishes a compact and straightforward approach for ultrafast generation, which can be translated to other fibre laser operation wavelengths.

Název v anglickém jazyce

Gain-controlled broadband tuneability in self-mode-locked Thulium-doped fibre laser

Popis výsledku anglicky

Ensuring self-driven mode-locking and broadband wavelength tuneability in all-fibre-integrated femtosecond laser sources enables a new level of their versatility and extends areas of their applications. Principle limitations for this are traditionally available ultrafast modulators and tuneability techniques. Here, we exploit Thulium-doped fibre to perform three roles in the cavity: laser gain, saturable absorber, and tuneability element via controlling its excitation level. We confirmed that Tm-doped fibre saturable absorption is defined by a reinforced quenching of Tm3+ pairs. As a result, we present both numerically and experimentally a highly stable sub-picosecond pulse generation with a similar to 90 nm tuneability range spanning from 1873 to 1962 nm via adjusting the cavity feedback. The maximum laser efficiency corresponds to 25% cavity feedback, enabling the highest output energy of 1 nJ in 600-fs solitons at 1877 nm. Overall, the presented laser system establishes a compact and straightforward approach for ultrafast generation, which can be translated to other fibre laser operation wavelengths.

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

—

Návaznosti

I - Institucionalni podpora na dlouhodoby koncepcni rozvoj vyzkumne organizace

Rok uplatnění

2022

Kód důvěrnosti údajů

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

Název periodika

COMMUNICATIONS PHYSICS

ISSN

2399-3650

e-ISSN

2399-3650

Svazek periodika

5

Číslo periodika v rámci svazku

1

Stát vydavatele periodika

DE - Spolková republika Německo

Počet stran výsledku

10

Strana od-do

219

Kód UT WoS článku

000849470900001

EID výsledku v databázi Scopus

2-s2.0-85136227717