半导体激光二极管去年经历了巨大的革新。由于这些设施用于城市间、各大洲间的光缆数字信息传输，因而它们对于通讯网络十分关键。在过去几个月中，研究者开发出一种效率更高、体积更小的激光二极管，它采用新型材料来控制电流流动和光约束。该技术将做成集成光路，以代替各种 Semiconductor laser diodes have undergone a huge innovation last year. As these facilities are used for the transmission of digital information on optical fiber cables between cities and continents, they are critical to the communications network. In the past few months, researchers have developed a more efficient and smaller laser diode that uses new materials to control current flow and optical confinement. The technology will be made into an integrated optical path, instead of various