polarization SAR极化SARpolarizationn.极化Polarization state of reflective light反射光的偏振态Polarization characteristics similarity极化相似性polarization-preserving optical fiber极化保偏光纤polarization maintaining fiber branching保偏光纤分路器件Polarization-Maintaining optical fiber保偏光纤polarization-maintaining fiber coupler保偏光纤耦合器polarization splitter directional couple偏振分路定向耦合器Polarization-insensitive phase shifter极化不灵敏移相器polarization mode dispersion compensation偏振模色散补偿polarization-diversity optical receiver偏振分集光接收机