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Dave's Circuits
Circuits designed by David Johnson, P.E.

Master Category List - Dave's Circuits
Last Updated on: Friday, April 25, 2008 04:12 PM


Amplifiers: Transimpedance     Freespace or Light Beam Communication  
Laser Circuits     Light Detectors or Optical Sensors
 
LASER/LED LIGHT OUTPUT INTENSITY METER
This circuit uses a large 1cm X 1cm silicon PIN photo diode and a transimpedance amplifier to measure the light power output of infrared and visible LEDs and laser diodes. It can be modified to produce almost any milliwatts to volts scale factor. It can be connected to either a multi-meter or an oscilloscope.

Click on Drawing Below to view PDF version of Schematic

Laser / LED Power Output Monitor designed by David A. Johnson, P.E. (July 8, 2000)

Amplifiers: Transimpedance     Freespace or Light Beam Communication  
Laser Circuits     Light Detectors or Optical Sensors
Master Schematic Category List - David A. Johnson, P.E.
 

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