Optical Probe Clarity: Examining Power Loss vs. Beam Spot

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SUMMARY

The discussion centers on the effectiveness of using a signal power budget for laser probes compared to merely assessing beam spot clarity. The author is developing a method to calculate power loss in dBm and dB for each probe, utilizing a laser source and detector. This approach is presented as a more precise alternative to visual inspection of the beam spot. Additionally, the safety classification of the laser in use is noted as Class 3B, indicating specific safety precautions are necessary.

PREREQUISITES
  • Understanding of laser safety classifications, specifically Class 3B
  • Knowledge of signal power budgeting techniques
  • Familiarity with measuring power loss in dBm and dB
  • Experience with laser sources and detectors
NEXT STEPS
  • Research methods for calculating signal power budgets in optical systems
  • Learn about laser safety protocols for Class 3B lasers
  • Explore techniques for measuring optical power loss accurately
  • Investigate the impact of beam spot quality on measurement accuracy
USEFUL FOR

Researchers, lab technicians, and optical engineers involved in laser testing and measurement, particularly those focused on improving the accuracy of data collection in vibration analysis.

daniel1211
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I work in a lab that uses laser probes to test for vibration and other data, currently the lab techs hook up the probe to a laser source and check to see how bright and clear the beam spot is. I have been working on having a signal power budget created for each probe using a laser source and detector and calculating the probes power loss in dBm and dB.

Am I wrong in believing this is a better option then just looking at the beam spot?
 
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daniel1211 said:
I work in a lab that uses laser probes to test for vibration and other data, currently the lab techs hook up the probe to a laser source and check to see how bright and clear the beam spot is. I have been working on having a signal power budget created for each probe using a laser source and detector and calculating the probes power loss in dBm and dB.

Am I wrong in believing this is a better option then just looking at the beam spot?
What is the safety class of the laser?
 
Class 3B
 

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