Characterization of InGaAs self-mixing detectors for chirp amplitude-modulated ladar (CAML)

Keith Aliberti; William C. Ruff; Hongen Shen; Peter G. Newman; Mark M. Giza; Wendy Sarney; Michael R. Stead; John Dammann; Rishabh Mehandru; Fan Ren

doi:10.1117/12.542072

13 September 2004 Characterization of InGaAs self-mixing detectors for chirp amplitude-modulated ladar (CAML)

Keith Aliberti, William C. Ruff, Hongen Shen, Peter G. Newman, Mark M. Giza, Wendy Sarney, Michael R. Stead, John Dammann, Rishabh Mehandru, Fan Ren

Author Affiliations +

Proceedings Volume 5412, Laser Radar Technology and Applications IX; (2004) https://doi.org/10.1117/12.542072
Event: Defense and Security, 2004, Orlando, Florida, United States

Abstract

The U.S. Army Research Laboratory (ARL) has developed a number of near-infrared, prototype laser detection and ranging (LADAR) Systems based on the chirp, amplitude-modulated LADAR (CAML) architecture. The use of self-mixing detectors in the receiver, that have the ability to internally detect and down-convert modulated optical signals, have significantly simplified the LADAR design. Recently, ARL has designed and fabricated single-pixel, self-mixing, InGaAs-based, metal-semiconductor-metal detectors to extend the LADAR operating wavelength to 1.55 mm and is currently in the process of designing linear arrays of such detectors. This paper presents fundamental detector characterization measurements of the new 1.55 mm detectors in the CAML architecture and some insights on the design of 1.55 μm linear arrays.

Citation Download Citation

Keith Aliberti, William C. Ruff, Hongen Shen, Peter G. Newman, Mark M. Giza, Wendy Sarney, Michael R. Stead, John Dammann, Rishabh Mehandru, and Fan Ren "Characterization of InGaAs self-mixing detectors for chirp amplitude-modulated ladar (CAML)", Proc. SPIE 5412, Laser Radar Technology and Applications IX, (13 September 2004); https://doi.org/10.1117/12.542072

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