Wavelength Selectable Solid-State Raman lasers in the Visible and Ultraviolet Ranges

Increased wavelength options in the visible and ultraviolet for Raman lasers operating on dual Raman modes.

We report increased wavelength options from Raman lasers for Raman media having two Raman modes of similar gain coefficient. For an external-cavity potassium gadolinium tungstate Raman laser pumped at 532 nm, we show that two sets of Stokes orders are generated simultaneously by appropriate orientation of the Raman crystal, and also wavelengths that correspond to sums of the two Raman modes. Up...

Femtosecond stimulated Raman scattering in pressurized gases in the ultraviolet and visible spectral ranges

We investigate femtosecond stimulated Raman scattering (SRS) in H2, D2, HD, and CH4 excited with 300-fsduration pulses at 390-nm wavelength and with as much as 0.1 mJ of energy. We show that the SRSgeneration threshold and conversion efficiency are due to the transient nature of SRS in femtosecond regime. We determine optimal conditions for efficient generation in the broad spectral range 289–7...

InP-based Long Wavelength Sources for Solid State Lasers Pumping

Solid-State Lasers

Fast Electro-Optic Wavelength Selection and Frequency Modulation in Solid State Lasers

II Electro-optic devices permit rapid wavelength selection and high-bandwidth frequency modulation in single-frequency solid state lasers. Laser dynamics limits both the speed ofwavelength selection and the linearity offrequency modulation. The maximum speed of laser mode selection is determined by the buildup ofoscillation from spontaneous emission. For frequency modulation, the minimum fracti...