摘要
通过一个二维半矢量模型求得纯折射率导引脊形波导和掩埋波导这两种常见平面条形半导体激光器波导结构的模式光场分布 ,再通过描述光束传播的非傍轴矢量二阶矩理论 ,通过平面波谱的方法获得激光器出射光束在横向和侧向上的束腰、远场发散角和M2 因子。讨论了波导结构参量变化对M2 因子的影响 ,并对两种波导结构光束的性质与波导参量的关系进行了比较。
The M2 factors, beam waists and far-field divergence angles of the beams of two kinds real refractive index stripe waveguide semiconductor lasers, plane ridge waveguide and plane buried waveguide lasers, are investigated by means of nonparaxial vector moment theory and plane wave spectrum. The waveguide optical modes were obtained by a semi-vectorial 2-D waveguide model. The effects of waveguide structure parameters on M2 factor are discussed and the beam properties are compared between the two kinds of laser structures.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2003年第1期45-49,共5页
Acta Optica Sinica
基金
国家自然科学基金 (990 12 0 0 112 )资助课题
