Single-longitudinal-mode cascaded crystalline Raman laser at 1.7 µm.
Opt Lett
; 45(24): 6715-6718, 2020 Dec 15.
Article
em En
| MEDLINE
| ID: mdl-33325877
ABSTRACT
A single-longitudinal-mode crystalline Raman laser in the 1.7 µm wave band was reported for the first time, to the best of our knowledge. The YVO4 Raman laser, which was intracavity-pumped by an actively Q-switched 1314 nm NdYLF laser, demonstrated the cascaded Stokes oscillation at 1715 nm. By inserting an etalon in the fundamental resonator, linewidth narrowing and power scaling of the second-Stokes laser were realized based on the spatial-hole-burning-free Raman gain. With an optimal pulse repetition frequency of 4 kHz, the maximum single-longitudinal-mode average output power of 1.8 W was acquired with the spectrum linewidth of â¼340MHz. Further increasing the incident pump power, the second-Stokes laser transitioned to multimode regime, and the maximum average output power reached 2.7 W with the peak power as high as â¼380kW.
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01-internacional
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MEDLINE
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En
Ano de publicação:
2020
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Article