Abstract
The combination of Stimulated Raman scattering (SRS) with second harmonic generation (SHG) and sum-frequency generation (SFG) has significantly broadened the range of wavelengths available from solid-state lasers, enabling the production of traditionally hard-to-reach wavelengths in the UV and visible spectral regions [1]. Continuous wave (CW) intracavity Raman solid-state lasers which incorporate intracavity SHG/SFG have been particularly effective at generating multi-Watt output in the yellow-orange spectral region (through frequency doubling of the first-Stokes wavelengths), for which there are significant applications in ophthalmology, display technologies and bio-medicine. By converting combinations of the fundamental and first-Stokes fields using SHG/SFG, it is possible to generate several visible wavelengths from the green to orange [2]. SRS is also a cascading process whereby the first-Stokes field can become intense enough to generate a second-Stokes field and so on, and we have recently reported lasing at the second-Stokes and its second harmonic in a resonator using Nd:GdVO 4 [3].
Published Version
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