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Integrated electrooptical electromagnetic field sensor with Mach‐Zehnder waveguide modulator and annular antenna
Author(s) -
Lee TsungHsin,
Shay WenTron,
Lee ChingTing
Publication year - 2008
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.23868
Subject(s) - microwave , antenna (radio) , waveguide , optics , mach–zehnder interferometer , electro optic modulator , electrical engineering , electromagnetic field , optoelectronics , physics , optical modulator , engineering , materials science , telecommunications , interferometry , phase modulation , quantum mechanics , phase noise
A small electromagnetic field sensor in the frequency range from 50 MHz to 2 GHz was developed that consisted of a Mach‐Zehnder waveguide modulator and a micro annular antenna, which was directly integrated with the traveling‐wave electrode of the Mach‐ Zehnder waveguide modulator on the same LiNbO 3 substrate. The size of the sensor is 45 mm × 10 mm × 1 mm, demonstrating that the new kind of design successfully miniaturized the sensor size. The average minimum detectable electromagnetic field intensity of the sensor is 3.9 mV/m. The result indicates that the new kind of sensor is of potential interest for future application. © 2008 Wiley Periodicals, Inc. Microwave Opt Technol Lett 50: 3125–3128, 2008; Published online in Wiley InterScience (www.interscience.wiley.com). DOI 10.1002/mop.23868