What Your Beam Analyzer Manual Didn't Tell You: How to Build Your Own M2 Device (or Understand Theirs)
DOI: 10.1117/3.1000595.ch2
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2.1 Preparing to Purchase a Commercial Beam Analyzer2.2 Resources2.2.1 Summary of the ISO standards on laser beam quality2.3 Equipment2.3.1 Camera selection2.3.2 Stage tradeoffs2.3.3 Filters2.4 Dark Current Noise and Zeroing2.5 Data Windowing2.5.1 Noise equivalent aperture (NEA)2.5.2 Error terms due to data windowing2.6 Curve Fitting2.7 Error Determination in M2 Measurements2.7.1 Error estimation2.7.2 Variance of second-moment radius due to discretization error2.7.3 Variance of second-moment radius due to dark current noise2.7.4 Error in NEA estimation2.7.5 Variance of second-moment radius due to NEA estimation error2.7.6 Total variance in second-moment radius measurements2.7.7 Effect of averaging multiple shots on second-moment radius variance2.8 Knife-Edge Measurements2.8.1 ISO two-point knife-edge method2.8.2 Single-point variable-aperture method2.9 Conclusions: M2

© 2013 Society of Photo-Optical Instrumentation Engineers (SPIE)

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