A study on the role of transmittances effect the self-Raman dual-wavelength laser output characteristics

In this work, the coupled equations of self-Raman dual-wavelength continuous-wave lasers are constructed by introducing the loss item of fundamental photon number. The output power analytical expressions of the fundamental laser and Raman laser are obtained through solving the couple equations. The impaction of transmittances on the self-Raman dual-wavelength laser output characteristics are simulated. Under different transmittance combination conditions, the changing rules of the separate output power, total output power and the ratio of two different wavelengths output power are given. The coupled equations are solved in approximations such as plane wave and independent-space intensity distribution, however the simulated results can show the main tendency of self-Raman dual-wavelength continuous-wave lasers, this has a certain guiding significance for the experiment.