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Electromagnetic field sensor using Mach‐Zehnder waveguide modulator
Author(s) -
Lee TsungHsin,
Hwang FuTsai,
Shay WenTron,
Lee ChingTing
Publication year - 2006
Publication title -
microwave and optical technology letters
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.304
H-Index - 76
eISSN - 1098-2760
pISSN - 0895-2477
DOI - 10.1002/mop.21776
Subject(s) - microwave , electro optic modulator , optics , mach–zehnder interferometer , electromagnetic field , antenna (radio) , electrical engineering , physics , optoelectronics , field (mathematics) , waveguide , optical modulator , materials science , engineering , telecommunications , phase modulation , interferometry , mathematics , pure mathematics , quantum mechanics , phase noise
An electromagnetic field sensor linking a LiNbO 3 electrooptical modulator with a circular antenna was studied. In this sensor, a Mach‐Zehnder electrooptical modulator was used as one of the fundamental building blocks. The frequency response was flat from 50 MHz to 3 GHz. The minimum detectable electromagnetic field intensity is 0.7 mV/m at 50 MHz and 1.2 mV/m at 3 GHz, respectively. © 2006 Wiley Periodicals,Inc.Microwave Opt Technol Lett 48:1897–1899, 2006; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.21776