CAJ | 학술논문

理论与实验研究了激光二极管侧泵平-平非对称腔.理论分析表明,当谐振腔运行于热稳区边缘时,激光棒内基模半径随泵浦功率迅速增加,使光束质量快速提高并保持较高的输出功率.由于该谐振腔运行于热稳区边缘的特性与近半球面腔相近,所以将此设计称为热近半球面腔.与运行于稳区边缘的平-平对称腔相比,热近半球面腔设计有助于缩短谐振腔腔长.在对热近半球面腔实验研究中,光束质量随泵浦功率迅速增加以及输出功率饱和现象被观察,实验研究与理论分析吻合较好.
이론여실험연구료격광이겁관측빙평-평비대칭강.이론분석표명,당해진강운행우열은구변연시,격광봉내기모반경수빙포공솔신속증가,사광속질량쾌속제고병보지교고적수출공솔.유우해해진강운행우열은구변연적특성여근반구면강상근,소이장차설계칭위열근반구면강.여운행우은구변연적평-평대칭강상비,열근반구면강설계유조우축단해진강강장.재대열근반구면강실험연구중,광속질량수빙포공솔신속증가이급수출공솔포화현상피관찰,실험연구여이론분석문합교호.
The performance of the diode side-pumped plane-plane asymmetric resonator was investigated. Theory analysis shows that, when the resonator is operating at the boundary of the thermal stable region, the fundamental mode diameter in the rods quickly increases, which leads to the improvement of laser beam quality while maintaining a higher output power. Because the performance of this plane-plane asymmetric resonator operating at the boundary of the stable region is similar to that of a near hemispherical resonator, such resonator design is named as thermally determined near hemispherical resonator. Comparing with the design of a symmetric plane-plane resonator operating at the boundary of the thermal stable region, the thermally determined near hemispherical resonator design can be shorten the cavity length and is suitable to a low and middle power diode side-pumped resonator. The beam quality quick improvement and the output power saturation are experimentally observed in the thermally determined near hemispherical resonator. There is a good agreement between the theory analysis and the experiment results.