Interdigitated finger semiconductor photodetector for optoelectronic mixing

Paul H. Shen; Michael R. Stead; Monica Alba Taysing-Lara; Jagadeesh Pamulapati; William C. Ruff; Barry L. Stann; Parvez N. Uppal

doi:10.1117/12.391758

17 July 2000 Interdigitated finger semiconductor photodetector for optoelectronic mixing

Paul H. Shen, Michael R. Stead, Monica Alba Taysing-Lara, Jagadeesh Pamulapati, William C. Ruff, Barry L. Stann, Parvez N. Uppal

Author Affiliations +

Proceedings Volume 4028, Infrared Detectors and Focal Plane Arrays VI; (2000) https://doi.org/10.1117/12.391758
Event: AeroSense 2000, 2000, Orlando, FL, United States

Abstract

We report on the fabrication and characterization of interdigitated finger, optical detectors/mixers. These devices are used in an FM/cw ladar system to detect and demodulate low intensity amplitude-modulated optical signals. Three different types of interdigitated finger structure were tested and compared in this study. We also present a theory to explain the asymmetry observed in the devices and discuss its implication in an FM/cw ladar application.

Citation Download Citation

Paul H. Shen, Michael R. Stead, Monica Alba Taysing-Lara, Jagadeesh Pamulapati, William C. Ruff, Barry L. Stann, and Parvez N. Uppal "Interdigitated finger semiconductor photodetector for optoelectronic mixing", Proc. SPIE 4028, Infrared Detectors and Focal Plane Arrays VI, (17 July 2000); https://doi.org/10.1117/12.391758

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