摘要: With the advent of new nonlinear materials and single frequency pump sources, there is renewed interest in Optical Parametric Oscillators (OPO's). We have used a single-mode diode-laser-pumped monolithic Nd:YAG nonplanar ring lase... 展开 With the advent of new nonlinear materials and single frequency pump sources, there is renewed interest in Optical Parametric Oscillators (OPO's). We have used a single-mode diode-laser-pumped monolithic Nd:YAG nonplanar ring laser that is both amplified and frequency doubled, to pump a monolithic MgO:LiNbO3 pulsed singly resonant OPO. Optical Parametric Oscillators offer wide tunability by using a solid state nonlinear crystal as the gain medium. Since the parametric gain does not come from atomic or molecular transition, the operating wavelength range is limited only by crystal dispersion the optical transmission ranges for the pump, signal and idler. Repeatable, reliable and damage free operation of OPO's has been difficult to obtain because the nonlinear nature of the gain has required the use of high peak power lasers as the pump sources. the short-pulse-length, high peak power lasers that were available for early OPO development had fluctuating spatial and temporal mode properties which were responsible for many problems in OPO operation. Lasers. Reprints. (jes) 收起