The model S2575GE Integrating Sphere consists of a model 261 Germanium sensor coupled to a model 2575, 50 mm diameter integrating sphere. The unit provides measurements in W or mW and is optimized for 1300 and 1550 nm wavelengths in the near-infrared portion of the spectrum.

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. U21-00-54

Key Features

Measurement in W or mW

Detector Information

Germanium    0.50cm2 active area

Rise Time

4 µ sec

Aperture Diameter

5 mm

Dynamic Range

3.0 x 10-9 to 1.6 W

Typical Response

1.9 x 10-3  A/W @ 1300 nm

Calibration Range

800 to 1750 nm in 10 nm steps


2 meter, included

Compatible with Handheld & Benchtop series Optical Meters.

Specifications are subject to change without notice.