High average power (105â
W) Fe:ZnSe laser pumped by radiation of laser diode side-pumped Er:YAG lasers.
Opt Lett
; 49(12): 3476-3479, 2024 Jun 15.
Article
em En
| MEDLINE
| ID: mdl-38875649
ABSTRACT
A high average power re-frequency operation FeZnSe laser using laser diode side-pumped free-running ErYAG lasers as activating sources is presented. Two pieces of subsurface layer doped FeZnSe polycrystal are adoptive in a reflective resonator configuration and face-cooled by liquid nitrogen. A maximal FeZnSe laser power of 105â
W at a wavelength of 4.1â
µm is achieved upon pumping by ten home-made ErYAG lasers with fiber coupled output working at a frequency of 250â
Hz and a pulse duration of â¼420â
µs. Corresponding to the maximum FeZnSe laser power, the optical-optical efficiency and slope efficiency with respect to the absorbed pump power are 43% and 44% respectively. The beam quality factor M2 is measured to be 3.4. To the best of our knowledge, it is the highest output average power of an FeZnSe laser reported.
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MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2024
Tipo de documento:
Article