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Stimulated Brillouin scattering (SBS), as one type of third-order nonlinear optics effect, is extensively exploited and rapidly developed in the field of lasers and optoelectronics. A large number of theoretical and experimental studies on SBS have been carried out in the past decades. Especially, the exploration of new SBS materials and new types of SBS modulation methods have been engaged simultaneously,...
We report a cavity stabilization scheme to enable single longitudinal mode operation from a diamond Raman laser at increased power. An output power of 7.2 W is demonstrated using a simple standing-wave laser cavity without the addition of frequency-selection elements.
Continuous-wave single-longitudinal-mode (SLM) lasers are an important tool for applications exploiting light-matter interactions. However, mature laser technologies using inversion gain media cover only a limited part of the optical spectrum. Therefore, nonlinear frequency conversion is necessary to reach wavelengths outside this range. Conversion using stimulated Raman scattering can be a simple...
Lasers operating in single-longitudinal-mode (SLM) are of great importance for high-precision measurements in nonlinear optics and spectroscopy as well as for applications in remote sensing, laser cooling and the flourishing field of gravitational wave detection. However, stable SLM in standing-wave inversion lasers is impeded by spatial hole burning which causes mode instability and can only be overcome...
To date rare-earth-doped high-power fiber lasers or amplifiers are among the most versatile laser sources in scientific research and industrial applications, not only because of their high beam quality and high efficiency, but also because of their wide range of potential emission spectra. In recent years researchers have successfully scaled the average power and achieved multi kW level with Yb-doped...
Defect induced stress birefringence in CVD grown diamond has been investigated using Metripol and Mueller polarimetry. Optical rotation was observed, up to a maximum of 280 through an 8 mm long diamond sample, in addition to linear birefringence.
Factors affecting the output efficiency of an external cavity quasi-cw KYW Raman laser were investigated. We show that a major limit to efficiency, in addition to thermal effects, results from a cascading effect involving a secondary Raman mode of KYW at 87 cm−1.
Diamond is a highly attractive laser material due to its exceptional optical and thermal properties. Its high thermal conductivity, low thermal expansion and wide transparency are especially suitable for high-average power laser applications. In comparison to more mature Raman crystalline materials, diamond has demonstrated the highest recorded output powers for both continuous wave [1] and pulsed...
We report an investigation into a 8.2 W diamond Raman laser with conversion efficiency of 27% pumped by a cw Nd:YVO4 laser. Power analysis enables determination of the factors limiting conversion efficiency.
We report a cw 1064 nm-pumped external cavity diamond Raman laser operating at the 1240 nm. The slope efficiency was 42% and maximum output power, currently limited by the available pump power, was 7.5 W.
CVD diamond Raman laser with external cavity operating at 1632 nm is demonstrated for the first time. Output energy of 25 μJ in the 6 ns long pulse with the fundamental spatial profile was obtained.
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