Optical Sensors

InGaAs Sandwich Photodiode from GPD Optoelectronics

Click for larger image
GPD Optoelectronics Corp.
October 14, 2012

GPD Optoelectronics Corp., Salem, NH, offers a 2 by 2 mm InGaAs sandwich detector assembly for noncontact optical pyrometry. The device has a customized 1.7 µm cutoff wavelength sensor for the top InGaAs photodiode while the bottom InGaAs photodiode's spectral response can be selected from 1.7 µm to 2.6 µm cutoff wavelength, depending on your requirements. The device uses the ratio principle for temperature measurement, providing temperature measurements independent of the target's emissivity over wide ranges, a target area that can be smaller than the detector area, and measurements that are unaffected by dust and other contaminants in the field of view.


CompanyGPD Optoelectronics Corp.
CountryUnited States (USA)


Sensors 2017 Call for Speakers



Twitter Feed

Find It Fix It Forum

Sensors invites you to join the Findit-Fixit Forum, where you can get answers to your sensing questions—concerning technologies, products, methods, applications, and services--and also offer help to your fellow engineers. The Forum covers all kinds of topics, from the basics to the extraordinary.

Join the discussion!

© Copyright 2016 Questex, LLC. All Rights Reserved. Sensorsmag. Privacy Policy | Terms of Use

If you are having technical difficulties or considerations, please contact the webmaster.