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, A. Ashrif A. Bakar, Ahmad Rifqi Md Zain, Mou’ad A. Tarawneh, 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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