Phase shifter structure for beam steering device

Embodiments of the present disclosure relate to a phase shifter structure for a beam steering device. A beam steering apparatus and a beam steering method are described. The beam steering apparatus includes a laser source coupled to an optical phased array (OPA). The OPA includes: a beam splitter network optically coupled to a laser source and configured to split a laser beam generated by the laser source into N outputs to generate an output beam; a first network of first phase shifters configured to steer the output beam in a first direction away from the longitudinal direction; and a second network of second phase shifters configured to steer the output beam in a second direction away from the longitudinal direction, the second direction being opposite the first direction. 本公开的实施例涉及用于光束转向设备的移相器结构。描述了一种光束转向设备和一种光束转向方法。该光束转向设备包括：耦合到光学相控阵列(OPA)的激光源。该OPA包括：分束器网络，该分束器网络光学耦合到激光源并且被配置为将由激光源生成的激光束分成N个输出以生成输出光束；第一移相器的第一网络，该第一移相器的第一网络被配置为在远离纵向方向的第一方向上转向输出光束；以及第二移相器的第二网络，该第二移相器的第二网络被配置为在远离纵向方向的第二方向上转向输出光束，第二方向与第一方向相反。