Journal
OPTICS LETTERS
Volume 39, Issue 6, Pages 1497-1500Publisher
OPTICAL SOC AMER
DOI: 10.1364/OL.39.001497
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Funding
- Netherlands Organization for Scientific Research (NWO)
- National Basic Research Program of China (973 Project) [2012CB315701, 2012CB315702]
- National Natural Science Foundation of China [61307070]
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A novel phase modulation parallel optical delay detector is proposed for microwave angle-of-arrival measurement with accuracy monitored by using only one dual-electrode Mach-Zehnder modulator. A theoretical model is built up to analyze the proposed system including measurement accuracy monitoring. The spatial delay measurement is translated into the phase shift between two replicas of a microwave signal. Thanks to the accuracy monitoring, the phase shifts from 5 degrees to 165 degrees are measured with less than 3.1 degrees measurement error. (C) 2014 Optical Society of America
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