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根据半导体激光器的退化特征,通过一定的光-电转换,利用电子电路来自动筛选早期失效的器件,其核心是光功率与驱动电流之间的自动调节系统。利用光功率计进行适当定标,即可制成实用的自动筛选装置。
According to the degradation characteristics of semiconductor lasers, the electronic devices are used to automatically screen the early failed devices through a certain optical-electrical conversion. The core of the device is an automatic adjustment system between optical power and driving current. Using optical power meter for proper calibration, can be made into a practical automatic screening device.