Research output: Contribution to journal › Article › peer-review
Gain-controlled broadband tuneability in self-mode-locked Thulium-doped fibre laser. / Kirsch, Dennis C.; Bednyakova, Anastasia; Varak, Petr et al.
In: Communications Physics, Vol. 5, No. 1, 219, 12.2022.Research output: Contribution to journal › Article › peer-review
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TY - JOUR
T1 - Gain-controlled broadband tuneability in self-mode-locked Thulium-doped fibre laser
AU - Kirsch, Dennis C.
AU - Bednyakova, Anastasia
AU - Varak, Petr
AU - Honzatko, Pavel
AU - Cadier, Benoit
AU - Robin, Thierry
AU - Fotiadi, Andrei
AU - Peterka, Pavel
AU - Chernysheva, Maria
N1 - Funding Information: D.C.K. and M.C. acknowledge the support of the Deutsche Forschungsgemeinschaft (DFG—German Research Foundation, Project No. CH 2600_1-1). A.B. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation (Project No. FSUS-2021-0015). A.F. acknowledges the support of the Ministry of Science and Higher Education of the Russian Federation (Project No. 075-15-2021-581) and Russian Science Foundation (Project No. 18-12-00457P). Publisher Copyright: © 2022, The Author(s).
PY - 2022/12
Y1 - 2022/12
N2 - 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 ~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.
AB - 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 ~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.
UR - http://www.scopus.com/inward/record.url?scp=85136227717&partnerID=8YFLogxK
UR - https://www.mendeley.com/catalogue/5af4062d-2f92-3e40-b191-4e0f1443bcef/
U2 - 10.1038/s42005-022-00989-x
DO - 10.1038/s42005-022-00989-x
M3 - Article
AN - SCOPUS:85136227717
VL - 5
JO - Communications Physics
JF - Communications Physics
SN - 2399-3650
IS - 1
M1 - 219
ER -
ID: 37555705