在很多测试应用中，二极管的电压和发出的光可以利用大小固定的电流源同时测出来。

In many test applications, the voltage and light output of the diode can be measured simultaneously using a fixed source current value.

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只要光一直照在这两种材料上，光电池就能不断提供电压和电流。

As long as light falls on the two materials, the photovoltaic Battery can continue to provide voltage and current.

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为精确测试半导体激光器(LD)的光功率-电流-电压(LIV)特性，提出一种基于脉冲注入调制的方法，并据此研制新型的LD脉冲测试系统。

A method based on pulse injection was put forward to test the light-current-voltage (LIV) characteristics of laser diode (LD), and a new type of pulse measurement system was developed.

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