【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。更多还原

【Abstract】 The M 2 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 M 2 facotor are discussed and the beam properties are compared between the two kinds of laser structures.更多还原