基于三层平板理论的LDA快轴发散角特性研究  

Study on the Characteristics of Fast-axis Divergence Angle of LDA Based on Three-plane Waveguide Theory

作　　者：董丽丽[1] 许文海[2] 张勋[1] 唐文彦[1] 

机构地区：[1]哈尔滨工业大学电气学院,黑龙江哈尔滨150001 [2]大连海事大学信息学院,辽宁大连116026

出　　处：《激光与红外》2007年第9期841-844,共4页Laser & Infrared

摘　　要：以三层平板理论为基础,得出半导体激光器阵列(LDA)快轴方向发散角的简化模型,从该模型中可以看出,对LDA的快轴发散角的影响因素主要有:单个发光单元的波导结构(包括有源层厚度、折射率)、波长和bar间距。通过仿真给出了LDA快轴发散角在这几个主要因素影响下的变化趋势。为了解LDA快轴发散角特性以及它的应用提供了理论支持。Based on the three-plane waveguide theory,a simplified fast axis divergence angle（FADA） model of three bars laser diode arrays（LDA） is presented.Furthermore,on the basis of the model,the main influencing factors on FADA are as following： waveguide structure of single radiant cell including thickness of active layer and refractive index,wavelength and space between bars.The responses of FADA to these factors are analyzed by simulations.The establishment of FADA model of LDA provides theory supports for the research and application of LDA far-field characteristics.

关 键 词：半导体激光器阵列 快轴发散角 光强 

分 类 号：TN248.4[电子电信—物理电子学]