Light polarization converter

The optical polarization converter includes an optical waveguide. A portion of the optical waveguide has an asymmetric cross-sectional profile. For example, the cross-section of the portion of the optical waveguide may not have symmetry associated with the horizontal axis, and may not have symmetry associated with the vertical axis. The portion of the optical waveguide is tapered. For example, the portion of the optical waveguide may be associated with one or more taper ratios. The portion of the optical waveguide is configured to convert a polarization mode of the light beam from a first basic polarization mode to a second basic polarization mode, such as from a substantially transverse electrical (TE) polarization mode to a substantially transverse magnetic (TM) polarization mode (and vice versa). 光偏振转换器包括光波导。光波导的一部分具有不对称的横截面轮廓。例如，光波导的该部分的横截面可以不具有与水平轴线相关联的对称性，并且可以不具有与垂直轴线相关联的对称性。该光波导的该部分是锥形的。例如，光波导的该部分可以与一个或多个锥度比相关联。光波导的部分被配置为将光束的偏振模式从第一基本偏振模式转换为第二基本偏振模式，诸如从基本横向电(TE)偏振模式转换为基本横向磁(TM)偏振模式(反之亦然)。