5â
kW power-level 1050â
nm narrow-linewidth fiber amplifier enabled by biconical-tapered active fiber.
Opt Lett
; 49(11): 2922-2925, 2024 Jun 01.
Article
em En
| MEDLINE
| ID: mdl-38824293
ABSTRACT
Effective wavelength extension is vital in the applications of high-power narrow-linewidth fiber lasers. In this work, we demonstrate a 5-kW power-level narrow-linewidth fiber amplifier at 1050â
nm utilizing a homemade biconical-tapered Yb-doped fiber (BT-YDF). Up to â¼4.96â
kW fiber laser is achieved with a 3â
dB linewidth of â¼0.54â
nm and a beam quality factor of Mx 2 = 1.46, My 2 = 1.6. The experimental comparisons reveal that BT-YDF has the advantages of improving a stimulated Raman scattering threshold and balancing transverse mode instability suppression in the fiber amplifier. This work could provide a good reference for extending the operating wavelength of high-power fiber amplifiers.
Texto completo:
1
Coleções:
01-internacional
Base de dados:
MEDLINE
Idioma:
En
Ano de publicação:
2024
Tipo de documento:
Article