英语翻译
问题描述：
英语翻译
Semiconductor lasers are diodes that emit coherent light by stimulated emission.They consist of a p-n junction inside a slab of semiconductor.Excitation is provided by current flow through the device,and the cleaved ends of the diode provide the feedback mirrors.
答
Semiconductor lasers are diodes that emit coherent light by stimulated emission.They consist of a p-n junction inside a slab of semiconductor.Excitation is provided by current flow through the device,...