Simultaneous blue and red light generation with birefringent phase matching

摘要

Several nonlinear crystals have been found to be simultaneously birefringent phase-matchable for two different upconversions in the blue and red ranges by using a Nd:YAG laser at 1.0642 μm and a parametric oscillator pumped by its second harmonic. The simultaneous phase-matching configurations and the corresponding tuning characteristics with some currently available nonlinear materials are discussed in detail.