11 June 2013 Crosstalk analysis in large-area low-capacitance InGaAs quad photodiodes
Author Affiliations +
We report crosstalk in 1 mm diameter and 2 mm diameter quad InGaAs photodiodes having quadrant-to-quadrant separation of 15 μm, 20 μm, and 25 μm. This crosstalk is a combination of resistive and capacitive coupling between the photodiode quadrants and varies widely on the combination on device diameter, quadrant-to-quadrant separation, illumination conditions, and modulation frequency. Thus, the position sensing accuracy is heavily influenced by the operating conditions of the quad photodiode.
© (2013) COPYRIGHT Society of Photo-Optical Instrumentation Engineers (SPIE). Downloading of the abstract is permitted for personal use only.
Shubhashish Datta, Shubhashish Datta, Abhay Joshi, Abhay Joshi, Jim Rue, Jim Rue, } "Crosstalk analysis in large-area low-capacitance InGaAs quad photodiodes", Proc. SPIE 8704, Infrared Technology and Applications XXXIX, 870408 (11 June 2013); doi: 10.1117/12.2015609; https://doi.org/10.1117/12.2015609

Back to Top