CAJ | 학술논문

为优化高斯型光束端面泵浦固体激光器中模式交叠比率，提高激光器输出功率，推导了高斯型泵浦光束对应的热致衍射损耗的解析表达式，分析了端面泵浦的掺钕激光器中此热致衍射损耗和模式交叠比率以及泵浦功率之间的关系．研究结果表明：在有热致衍射损耗条件下，优化的交叠比率小于0．65，忽略热致衍射损耗，优化值变大．
위우화고사형광속단면빙포고체격광기중모식교첩비솔，제고격광기수출공솔，추도료고사형빙포광속대응적열치연사손모적해석표체식，분석료단면빙포적참녀격광기중차열치연사손모화모식교첩비솔이급빙포공솔지간적관계．연구결과표명：재유열치연사손모조건하，우화적교첩비솔소우0．65，홀략열치연사손모，우화치변대．
The analytical model of thermally induced diffraction losses of Ganssian pump beam is derived as functions of mode?to?pump ratio and pump power in diode?end?pump Nd?doped laser.The mode?to?pump ratio is optimized.The results show that the optimum mode?to?pump ratio is less than 0.65 that is less than that without thermally induced diffraction losses.This model is applied into diode ?end?pump Nd∶GdVO4 laser,which is in agreement with the experimental results.