The model 280 radiometric sensor is our miniature series Indium-Gallium-Arsenide sensor, particularly suited for measurements at 1550 nm.  It can be adapted for use with Miniature Series integrating spheres and other accessories. 

Our wide range of optical power meters, photometric and radiometric sensors is complemented by ISO/IEC 17025 accreditation by NVLAP (NVLAP lab code 200823-0), resulting in unmatched performance and custom configuration as required.

Key Specifications                                       Part No. U23-01-258

Key Features

Dynamic range from -8.5 to +3.5 dBm. Very low noise.

Detector Information

InGaAS    3 mm2   active area

Rise Time

100 nsec

Dynamic Range

1.4 x 10-4 to 2.2 x 10-3 W

Typical Response

9.5 x 10-1 A/W @ 1550 nm

Calibration Range

800 to 1750 nm in 10 nm steps


2 meter, included

Compatible with the UDT Handheld and Benchtop series Optical Meters and Integrating Spheres (with 1718 adaptor).

Specifications are subject to change without notice.

1718 Adapter for coupling to Gamma Scientific integrating spheres.