摘要
由于单管半导体激光器比半导体激光线阵、叠阵具有更好的光束质量及散热特性,因此更适用于光电干扰光源。针对于电荷耦合器件(CCD)光谱响应曲线特征,采用808nm单管半导体激光器为光源,将24只单管半导体激光器分组集成,通过空间合束和偏振合束以提高其输出功率密度,采用自行设计的光学系统对光束进行扩束聚焦,耦合进芯径为300μm,数值孔径0.22的光纤中,所有激光器都采用串联方式,在8.5A电流下通过光纤输出功率为162W,耦合效率达到84%。
Because of the good beam quality and heat dissipation of single emitter diode laser, it is more suitable to be used in the source of electro-optic countermeasure. Aim at the response curve of charge-coupled device （CCD） spectrum, 808 nm single emitter is used as unit source and 24 single emitters are divided into four groups. In order to increase the output power intensity, space combination and polarization combination are used in the experiment. Combined beam is focused in an optical fiber through the focused lens group designed by ourself. All the single emitters are connected in series. When the drive current is 8.5 A, 162 W output power is obtained from a 300 t^m fiber core with a numerical aperture of 0.22 at 808 nm and coupling efficiency of 84 %.
出处
《中国激光》
EI
CAS
CSCD
北大核心
2012年第5期1-5,共5页
Chinese Journal of Lasers
基金
吉林省科技厅重大项目(10ZDGG001)资助课题
