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Open AccessArticle

Optical Analog to Electromagnetically Induced Transparency in Cascaded Ring-Resonator Systems

Key Laboratory of Instrumentation Science & Dynamic Measurement, Ministry of Education, North University of China, Taiyuan 030051, China
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Author to whom correspondence should be addressed.
Academic Editor: Vittorio M. N. Passaro
Sensors 2016, 16(8), 1165; https://doi.org/10.3390/s16081165
Received: 23 June 2016 / Revised: 19 July 2016 / Accepted: 21 July 2016 / Published: 25 July 2016
(This article belongs to the Section Physical Sensors)
The analogue of electromagnetically induced transparency in optical methods has shown great potential in slow light and sensing applications. Here, we experimentally demonstrated a coupled resonator induced transparency system with three cascaded ring coupled resonators in a silicon chip. The structure was modeled by using the transfer matrix method. Influences of various parameters including coupling ratio of couplers, waveguide loss and additional loss of couplers on transmission characteristic and group index have been investigated theoretically and numerically in detail. The transmission character of the system was measured by the vertical grating coupling method. The enhanced quality factor reached 1.22 × 105. In addition, we further test the temperature performance of the device. The results provide a new method for the manipulation of light in highly integrated optical circuits and sensing applications. View Full-Text
Keywords: coupled resonator induced transparency; electromagnetically induced transparency; ring resornator; silicon waveguide coupled resonator induced transparency; electromagnetically induced transparency; ring resornator; silicon waveguide
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MDPI and ACS Style

Wang, Y.; Zheng, H.; Xue, C.; Zhang, W. Optical Analog to Electromagnetically Induced Transparency in Cascaded Ring-Resonator Systems. Sensors 2016, 16, 1165.

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