Unlock Precision with Two-Color Detectors from GPD
Looking for accurate, high-speed, non-contact temperature sensing in extreme environments?
Two-color stacked detectors from GPD Optoelectronics offer dual-layer photodiode construction, using materials like Si, Ge, and InGaAs. These detectors are designed for sensing blackbody radiation and industrial temperature monitoring (pyrometry).
These components are built for applications in metal processing plants, refractory operations, semiconductor fabs, and high-speed industrial temperature control systems. With high-speed feedback and stacked detector architecture, GPD delivers unmatched performance in non-contact temperature measurement.
Why choose GPD Optoelectronics devices:
- Reliable under variable emissivity
- Perfect for remote & high-temp environments
- Ideal for black body radiation measurement, pyrometry & more
Learn how ratio pyrometry delivers reliable temperature data, even when emissivity varies. Read the white paper entitled “An Introduction to InGaAs Over InGaAs Ratio Pyrometry.”
About GPD Optoelectronics
Founded in 1973, GPD Optoelectronics began by making high-quality germanium transistors, but since the early 1980s the company manufactures both germanium and indium gallium arsenide photodiodes and multi-element photodetectors. In addition to offering a variety of off-the-shelf products, GPD specializes in providing customized parts that are uniquely tailored to customer applications. GPD has the agility to design and deliver prototypes of custom products often within just a few weeks.
GPD’s products include:
- Photodiodes
- Position sensors
- Avalanche photodiodes – InGaAs APDs
- Specialty products
To request more information or a quotation for these or other GPD products, contact IL Photonics.

