Journal
IEEE PHOTONICS TECHNOLOGY LETTERS
Volume 24, Issue 13, Pages 1106-1108Publisher
IEEE-INST ELECTRICAL ELECTRONICS ENGINEERS INC
DOI: 10.1109/LPT.2012.2195780
Keywords
Integrated optical sensor; lithium niobate; Mach-Zehnder interferometer; pulsed electric field; tapered antenna array
Funding
- National Defense Pre-Research Foundation of China [9140A02060410DZ0225]
- National Natural Science Foundation of China [60771054]
- Fundamental Research Funds for the Central Universities [ZYGX2010J007]
- Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Ministry of Education, China
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A lithium niobate (LiNbO3)-based integrated optical sensor with Mach-Zehnder optical waveguide interferometer and tapered antenna array was designed and fabricated for electric field detection. Experimental results reveal that this sensor has a frequency response deviation less than +/- 10 dB within the range of 10 kHz to 18 GHz, and its minimum detectable electric field intensity is 0.4 V/m. Moreover, a pulsed electric field with nanoseconds width and electric field intensity of 103 V/m have been detected by this sensor.
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