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DATA SHEET \\ VTC 2400 (preliminary)
Far-field emission analysis
Key features at a glance
y Single-shot VCSEL array / LED characterization
y Measure the radiance ａnd numerical aperture
of the whole emitter ensemble
y Uniformity control of the radiation pattern
y Identification of highest intensity spot for laser safety evaluations
y Radiometric calibration traceable to the PTB
The VTC 2400 consists of a light-permeable screen with
with a monochrome camera suitable for measurements
in the near infrared wavelength region. It is optionally
equipped with an optical bench ａnd movable mounts for
the emitter ａnd camera. The device-under-test illuminates
the screen from one side ａnd creates a spatially resolved
mapping of the radiant intensity. The camera captures this
distribution from its transmission profile. Consequently, the
setup allows for the measurement of angular distribution
of the far field distribution of the VCSEL array or LED.
The overall system comes with an absolute radiometric
calibration traceable to national standards (PTB). To verify
compliance of the DUT with IEC laser safety standards,
the VTC 2400 enables identification of the maximum
intensity spot of the emission pattern
