High power FAP/IR Laser Diode Driver

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Join Date: Aug 2020

Posts: 157
- Safety: --> http://www.laserpointersafety.com
  
  Online mRad divergence calculator, measure output beam diameter and then spot diameter at a distance, input numbers: https://www.laserworld.com/en/laserw...ivergence.html
  
  Beam divergence calculator - you can clearly see the importance if the distance is increased: https://www.laserworld.com/en/laserw...alculator.html
  
  Online Relative Brightness Calculator: https://slickscreen.github.io/laser-tools/brightness
  
  Pulsed Laser Peak Power Calculator (YAG etc.): https://www.ophiropt.com/laser--meas...wer-calculator
  
  Cheap way to measure wavelength: https://tinyurl.com/Measuring-wavelength-cheap
  
  If building a low divergence fat beam pointer, what diameter lens do you need for a given distance from your diode? Find the angle of radiation for the raw output of the diode and determine the size needed at a given FL: http://www.1728.org/angsize.htm
  
  How to build a laser beam expander: https://www.newport.com/medias/sys_m...m-Expander.pdf
#1

High power FAP/IR Laser Diode Driver

09-27-2020, 02:49 PM

Here's a nice high constant current DC driver for high power ~2 VDC Near-IR laser diodes such as a Coherent FAP800. This unit runs off of normal household AC mains voltages for either the US or the higher European voltage. The DC output voltage can be set high enough to easily run two 50 watt FAP800 diodes in series. Contact the seller for specifics.

https://www.ebay.com/itm/Laser-Diode...n/254610777961

The output current can be set using a 1 to 10 VDC control voltage.
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OneGoodEye

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Join Date: Jul 2020

Posts: 6
#2

09-27-2020, 03:20 PM

Cheap! That driver costs thousands when new.
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