Wavelength-adjustable yellow laser by using a birefringence filter in the Nd:YAG stimulated Raman scattering laser

This work shows the feasibility of demonstrating various yellow laser outputs with common solid-state laser materials. The Nd:YAG laser is able to achieve wavelength adjustment by using the birefringence filter. By further including the intracavity stimulated Raman scattering, the fundamental wavelength can be extended. Up to fifteen different wavelengths in a range from 1144 nm to 1194 nm can be successfully generated by using different Raman crystals. Finally, the yellow laser, especially that at 577 nm, can be generated via second harmonic generation.