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Proceedings Paper

Quantum enhancement of a coherent ladar receiver using phase-sensitive amplification
Author(s): Peter A. Wasilousky; Kevin H. Smith; Ryan Glasser; Geoffrey L. Burdge; Lee Burberry; Bill Deibner; Michael Silver; Robert C. Peach; Christopher Visone; Prem Kumar; Oo-Kaw Lim; Gideon Alon; Chao-Hsiang Chen; Amar R. Bhagwat; Paritosh Manurkar; Michael Vasilyev; Muthiah Annamalai; Nikolai Stelmakh; Zachary Dutton; Saikat Guha; Cesar Santivañez; Jian Chen; Marcus Silva; Will Kelly; Jeffrey H. Shapiro; Ranjith Nair; Brent J. Yen; Franco N. C. Wong
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Paper Abstract

We demonstrate a balanced-homodyne LADAR receiver employing a phase-sensitive amplifier (PSA) to raise the effective photon detection efficiency (PDE) to nearly 100%. Since typical LADAR receivers suffer from losses in the receive optical train that routinely limit overall PDE to less than 50% thus degrading SNR, PSA can provide significant improvement through amplification with noise figure near 0 dB. Receiver inefficiencies arise from sub-unity quantum efficiency, array fill factors, signal-local oscillator mixing efficiency (in coherent receivers), etc. The quantum-enhanced LADAR receiver described herein is employed in target discrimination scenarios as well as in imaging applications. We present results showing the improvement in detection performance achieved with a PSA, and discuss the performance advantage when compared to the use of a phase-insensitive amplifier, which cannot amplify noiselessly.

Paper Details

Date Published: 6 September 2011
PDF: 15 pages
Proc. SPIE 8163, Quantum Communications and Quantum Imaging IX, 816305 (6 September 2011);
Show Author Affiliations
Peter A. Wasilousky, Harris Corp. (United States)
Kevin H. Smith, Harris Corp. (United States)
Ryan Glasser, Harris Corp. (United States)
Geoffrey L. Burdge, Harris Corp. (United States)
Lee Burberry, Harris Corp. (United States)
Bill Deibner, Harris Corp. (United States)
Michael Silver, Harris Corp. (United States)
Robert C. Peach, Harris Corp. (United States)
Christopher Visone, Harris Corp. (United States)
Prem Kumar, Northwestern Univ. (United States)
Oo-Kaw Lim, Northwestern Univ. (United States)
Gideon Alon, Northwestern Univ. (United States)
Chao-Hsiang Chen, Northwestern Univ. (United States)
Amar R. Bhagwat, Northwestern Univ. (United States)
Paritosh Manurkar, Northwestern Univ. (United States)
Michael Vasilyev, The Univ. of Texas at Arlington (United States)
Muthiah Annamalai, The Univ. of Texas at Arlington (United States)
Nikolai Stelmakh, The Univ. of Texas at Arlington (United States)
Zachary Dutton, Raytheon BBN Technologies (United States)
Saikat Guha, Raytheon BBN Technologies (United States)
Cesar Santivañez, Raytheon BBN Technologies (United States)
Jian Chen, Raytheon BBN Technologies (United States)
Marcus Silva, Raytheon BBN Technologies (United States)
Will Kelly, Raytheon BBN Technologies (United States)
Jeffrey H. Shapiro, Massachusetts Institute of Technology (United States)
Ranjith Nair, Massachusetts Institute of Technology (United States)
Brent J. Yen, Massachusetts Institute of Technology (United States)
Franco N. C. Wong, Massachusetts Institute of Technology (United States)

Published in SPIE Proceedings Vol. 8163:
Quantum Communications and Quantum Imaging IX
Ronald E. Meyers; Yanhua Shih; Keith S. Deacon, Editor(s)

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