13 October 2017 Improvement of integrated electric field sensor based on hybrid segmented slot waveguide
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Abstract
Integrated electric-field (E-field) sensors are commonly used devices in E-field sensing. However, distortion in the modulated signal due to high half-voltage ( V π ) and obtaining a low-frequency response are challenging issues in low-frequency AC E-field sensors. The aim of this study is to investigate a modification by adding a Si layer beneath a segmented slot waveguide (SSW) and optimizing the hybrid SSW as the core of a sensor to determine the sensor features in terms of the frequency response and sensitivity. The results of reducing the Si-layer thickness and segment width with high periodicity revealed a high modulation efficiency for very low-frequency AC E-field sensors and simultaneously expanded the minimum limit of detection by incorporating sensors in very small AC E-fields. This study validated the feasibility and efficiency of using a hybrid SSW as the core of highly sensitive low-frequency AC E-field sensors.
© 2017 Society of Photo-Optical Instrumentation Engineers (SPIE)
Musab A. M. Al-Tarawni, Musab A. M. Al-Tarawni, A. Ashrif A. Bakar, A. Ashrif A. Bakar, Ahmad Rifqi Md Zain, Ahmad Rifqi Md Zain, Mou’ad A. Tarawneh, Mou’ad A. Tarawneh, Sahrim Hj. Ahmad, Sahrim Hj. Ahmad, } "Improvement of integrated electric field sensor based on hybrid segmented slot waveguide," Optical Engineering 56(10), 107105 (13 October 2017). https://doi.org/10.1117/1.OE.56.10.107105 . Submission: Received: 16 June 2017; Accepted: 25 September 2017
Received: 16 June 2017; Accepted: 25 September 2017; Published: 13 October 2017
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