Abstract
A space-dependent theoretical model is developed to study the influence of the thermal effect on the characteristics of self-Raman lasers. The performances of the Raman laser are well researched by solving rate equations numerically. The simulation results show that the performance of the Raman laser can be improved by narrowing the linewidth of the fundamental field and using an output coupler with optimum transmission for 880 nm and 914 nm pump wavelengths. Also, cooling the temperature of the crystal for the 880 nm pump wavelength and heating the crystal temperature appropriately for the 914 nm pump wavelength are promising routes to further improve the Raman power.
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