文件名称：DFBlaser窄线宽激光器
文件大小：411KB
文件格式：PDF
更新时间：2012-04-13 03:35:25
DFB
关于窄线宽激光器的文档 In both DFB and DBR diodes, a diffraction grating – often referred to as “Bragg grating” or “Bragg refl ector” – is incorporated in the semiconductor chip. The grating selects a single longitudinal laser mode and therefore determines the lasing wavelength. In a DFB laser, the grating is integrated into the active section of the diode. In a DBR laser, by contrast, the grating (“Bragg section”) is separated from the active region (“gain section”).