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利用光子轨道角动量(OAM)可以大幅度提高通信系统的频谱效率和容量,从而满足未来通信容量不断增长的需求。以InP基半导体外延材料为基础,设计了一种将分布反馈(DFB)半导体激光器与OAM光转换器件集成在一起的有源半导体OAM光束发射器,并对这种结构进行了参数设计和模型仿真。
The use of photonic orbital angular momentum (OAM) can greatly improve the spectral efficiency and capacity of communications systems to meet the ever-increasing demand for future communications capacity. Based on the InP-based semiconductor epitaxial material, an active semiconductor OAM beam emitter integrating DFB (semiconductor laser) and OAM conversion device was designed and the parameters were designed and modeled .