据英国《新科学家》1993年10月23日报道,电话网和计算机连网中使用的光纤通信系统成本较高,美国电话电报公司(AT & T)的贝尔实验室研制出一种新型半导体激光器,可以大大降低光纤通信的成本。这种区域激光器(Z激光器)像激光打印机和激光唱机一样,通过安放在机器表面的半导体材料“激活层”中电子的激发产生光。不同处在于,其他的半 According to the British “New Scientist,” reported on October 23, 1993, optical fiber communication systems used in the telephone network and computer networking are more expensive. A new semiconductor laser was developed by AT & T’s Bell Labs , Can greatly reduce the cost of optical fiber communication. Such area lasers (Z lasers), like laser printers and compact disc players, generate light by the excitation of electrons in a semiconductor material “active layer” placed on the surface of the machine. The difference is that the other half