公开(公告)号：US20070253454A1

公开(公告)日：2007-11-01

申请号：US10426472

申请日：2003-04-29

申请人： Todd Gustavson ,  Andreas Weber

发明人： Todd Gustavson ,  Andreas Weber

IPC分类号： H01S3/00

CPC分类号： H01S5/06213 ,  H01S5/06812 ,  H01S5/4025

摘要： A method for optimizing a dc operating drive current of a laser diode is presented. Lasers of a particular type are characterized in terms of the dependency of certain parameters on temperature and of the minimum bias current required for adequate laser speed. The minimum bias current is determined using the operating bias current minus the threshold current all normalized by the threshold current. For individual laser diodes, the threshold current and slope efficiency are obtained at various temperatures to allow calculation at operating temperatures of interest. The minimum laser bias current for speed can then be determined over the operating temperature range. This may be done by setting the optical power to the highest value calculated using this minimum acceptable bias criterion over the operating temperature range. The ac and dc laser driver current sourcing requirements may be computed to ensure laser and module compatibility.

摘要翻译： 提出了一种用于优化激光二极管的直流工作驱动电流的方法。 特定类型的激光器的特征在于某些参数对温度和足够的激光速度所需的最小偏置电流的依赖性。 使用工作偏置电流减去所有由阈值电流归一化的阈值电流来确定最小偏置电流。 对于单独的激光二极管，可以在各种温度下获得阈值电流和斜率效率，以便在感兴趣的工作温度下进行计算。 然后可以在工作温度范围内确定用于速度的最小激光偏置电流。 这可以通过将光功率设置为在工作温度范围内使用该最小可接受偏置标准计算的最高值来完成。 可以计算交流和直流激光驱动器电流源的要求，以确保激光和模块的兼容性。