Wavelength-switchable watt-level continuous wave near-infrared Pr3+:LiYF4 lasers pumped by an InGaN laser diode.
Opt Lett
; 49(7): 1660-1663, 2024 Apr 01.
Article
em En
| MEDLINE
| ID: mdl-38560830
ABSTRACT
We report a high-performance wavelength-switchable near-infrared Pr3+LiYF4 (PrYLF) laser by InGaN laser diode (LD) pumping. The 895, 922, and 924â
nm lasers with low emission cross sections in the PrYLF crystal have been successfully realized using a birefringent filter Lyot as well as designing and optimizing optical thin films and the laser resonant cavity. The maximum output powers of the 895, 922, and 924â
nm lasers are 2.01, 1.92, and 1.95â
W, respectively. As far as we know, these are the highest power for PrYLF lasers at 895, 922, and 924â
nm so far. The beam quality M x2 and M y2 factors are measured to be 1.85 and 1.71 at 895â
nm, 1.94 and 1.67 at 922â
nm, and 1.76 and 1.60 at 924â
nm, respectively. The laser output power fluctuates within ±3%. In addition, the transmittance of the Lyot is theoretically calculated to achieve laser wavelength switching. The successful realization of the wavelength-switchable watt-level continuous wave near-infrared PrYLF laser can provide many practical applications in biomedicine and other fields.
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01-internacional
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MEDLINE
Idioma:
En
Revista:
Opt Lett
Ano de publicação:
2024
Tipo de documento:
Article