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Single and Multi-Mode VCSEL Testing

Posted on: September 12th, 2019

This Month’s spectra were contributed by a current Avantes customer in the manufacturing of Vertical Cavity Surface Emitting Lasers (VCSEL).

Parameters Measured

We utilize Avantes spectrometers to measure spectral peak wavelength, centroid, SMSR, FWHM, and RMS spectral bandwidth of a broad range of VCSEL-based laser products.

Wavelength Range 650nm to ~1000nm
Laser Power 10’s of uW’s to 10’s of Watts
Modes Single-mode to Highly Multi-mode Emission


Platforms include high-speed wafer probe/die sort, final production test of packaged components, and general lab use.

Benefits of the Avantes System:

Spectra Images

Single Mode Narrow Linewidth 794 nm VCSEL

2-Mode 890nm VCSEL With Low SMSR

Multi-mode 850nm Multi-aperture High-power VCSEL Array

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