VCSEL measurement system


Driven by the demand for mobile phone 3D sensing, automotive LiDAR and optical fiber transmission, the VCSEL component market has gradually grown. Using TEMPOint’s VCSEL LIV measurement system, users can quickly and accurately test the VCSEL performance (single point test, variable current , Variable temperature test).

Application field:

  • Face recognition
  • Gesture Recognition
  • Optical radar LiDAR
  • Time difference ranging ToF
  • Laser cutting


  • Minimum 0.2nm resolution
  • VCSEL dedicated spectrometer
  • 200 Khz high capture speed
  • Minimum 50us pulse width output
  • The instrument can do absolute value calibration in Taiwan
Measurement data
Peak radiant flux (W)      Average radiant flux (W)
Peak wavelength(nm)    Center wavelength(nm)    Center of gravity wavelength(nm)    Half width(nm)
Radiation voltage(V)     Current(A)     Power(W)     Radiation conversion efficiency
Radiant flux@ time domain        Spectral value
system requirement Suggested demand
Windows 7 32bit / 64bit or higher operating system
1 GB or more RAM
2 GB or more hard disk capacity
Windows 7 32bit / 64bit or higher operating system
4 GB or more RAM
20 GB or more hard disk capacity
System specifications
model Spectrum LoMo For VCSEL
Integrating sphere
material Spectralon
Internal dimensions 5.3”( 13.5 cm )
Reflectivity > 98.5% ( 400 – 1500 nm )
> 95% ( 250 – 2500 nm )
Optical specifications
wavelength 800 – 990nm
Optical resolution 0.2 nm
Pixel interval 0.11 nm
Radiant flux range 10m-100w
Wavelength accuracy ± 0.1 nm
Wavelength reproducibility ± 0.2 nm
Detector capture speed 200 Khz
Detector linearity 99.5%
Detector accuracy ± 0.1%
Trace back NML or NIST
Other specifications
Digital interface USB 2.0
physical dimension 28.5 x 18 x 20 cm3
weight 2 kg
Power Specifications
Rated output 60V / 7.5A for Pulse / 500W
Minimum pulse width 50us
Current accuracy 0.04%+1mA (Low Range)
0.08%+5mA (High Range)

Note: Product specifications and descriptions in this document are subject to change without notice.

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