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Near-field Analysis of VCSEL Arrays — LED professional


Single emitter beam waist and spectral analysis

By implementation of a z-translation stage, the camera enables the characterization of the single emitter beam profiles. In this way, the single emitters can be characterized in terms of beam waist, numerical aperture and M² value. For analyzing the spectral parameters, the camera is optionally available in a version with fiber output. Connecting the VTC 4000 to a high-resolution CAS spectroradiometer enables measuring the peak wavelength of every single emitter. The VTC 4000 can be easily integrated into handler systems with x-, y- and z-translation stages. This enables automated characterization of complete VCSEL arrays.

Key features:  

  • 2D measurement solution for near field characterization of VCSEL arrays
  • Radiant power, polarization, position, divergence and peak wavelength for all single emitters
  • Flat-field and absolute power calibration, traceable to national metrology standards
  • Easy software integration by LumiSuite SDK


For more information…

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© 2021 LED professional / Luger Research e.U.



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