4.7 Article

Generation of 1216 nm and 608 nm laser emission using cascaded Raman shifts in Nd:YVO4

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OPTICS AND LASER TECHNOLOGY
卷 157, 期 -, 页码 -

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ELSEVIER SCI LTD
DOI: 10.1016/j.optlastec.2022.108716

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Raman laser; Nd; YVO 4 crystal; Orange laser; Composite crystal

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This study reports the design and operation optimization of two self-Raman lasers for emission at 1216 nm and 608 nm. By using double-end diffusion-bonded Nd:YVO4 composite crystal and a non-critically phase matched LBO crystal, efficient operation with specific wavelength emission was achieved.
We report the design and operation of two self-Raman lasers optimized for emission at 1216 nm and 608 nm, utilizing a combination of Raman shifts at 890 and 259 cm-1 in c-cut Nd:YVO4 crystal. Key to the efficient operation of these lasers was the use of a double-end diffusion-bonded Nd:YVO4 composite crystal. This enabled the generation of a maximum average output power of 2.6 W at 1216 nm (with a diode-Stokes conversion ef-ficiency of 14.7%) from the Stokes-optimized cavity. With the incorporation of a non-critically phase matched LBO crystal and a slight cavity re-design, the Stokes field at 1216 nm was frequency doubled to the orange part of the visible spectrum (608 nm), where a maximum average output power of 1.71 W was achieved with a diode -orange conversion efficiency of 9.7%.

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