The Operational Principle of Optical Power Meter

The Operational Principle of Optical Power Meter

Firstly, It is transmitted over the optical signal is projected on the photosensitive surface of the PIN photodetector to be converted to current, and then through the I / V conversion circuit and the amplifying circuit to obtain a voltage signal. This signal is then supplied to the low pass filter response for filtering and amplification compensation to obtain the power value corresponding to the DC voltage, and then after the voltage by the A / D conversion to obtain a digital representation of the power level, and finally after data processing and judged by the CPU, the data into digital LCD display or indication for power.

So as you can see above, it is the operational principle of optical power meter.

 

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