Theoretical study of diode pumped intracavity backward optical parametric oscillator based on periodically poled lithium niobate

In this paper, a diode pumped mid-IR laser based on a singly resonant intracavity backwards optical parametric oscillator (SR IC-BOPO) is proposed and a simulation model is established. The model takes into account light emission from a laser crystal (e.g., Nd:YVO4), a SR IC-BOPO from a periodically poled nonlinear crystal (e.g., periodically poled lithium niobate (PPLN)), linear loss resulting from optical components, nonlinear loss due to the …