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Open AccessArticle

Evanescently Coupled Rectangular Microresonators in Silicon-on-Insulator with High Q-Values: Experimental Characterization

1
Faculty of Science and Engineering, Waseda University, Shinjuku, Tokyo 169-8555, Japan
2
Research & Development Center, Oki Electric Industry Co., Ltd., Warabi, Saitama 335-8510, Japan
*
Author to whom correspondence should be addressed.
Photonics 2017, 4(2), 34; https://doi.org/10.3390/photonics4020034
Received: 13 March 2017 / Revised: 22 April 2017 / Accepted: 24 April 2017 / Published: 27 April 2017
We report on evanescently coupled rectangular microresonators with dimensions up to 20 × 10 μm2 in silicon-on-insulator in an add-drop filter configuration. The influence of the geometrical parameters of the device was experimentally characterized and a high Q value of 13,000 was demonstrated as well as the multimode optical resonance characteristics in the drop port. We also show a 95% energy transfer between ports when the device is operated in TM-polarization and determine the full symmetry of the device by using an eight-port configuration, allowing the drop waveguide to be placed on any of its sides, providing a way to filter and route optical signals. We used the FDTD method to analyze the device and e-beam lithography and dry etching techniques for fabrication. View Full-Text
Keywords: rectangular microresonators; silicon-on-insulator; photonic devices rectangular microresonators; silicon-on-insulator; photonic devices
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MDPI and ACS Style

Mendez-Astudillo, M.; Okayama, H.; Nakajima, H. Evanescently Coupled Rectangular Microresonators in Silicon-on-Insulator with High Q-Values: Experimental Characterization. Photonics 2017, 4, 34. https://doi.org/10.3390/photonics4020034

AMA Style

Mendez-Astudillo M, Okayama H, Nakajima H. Evanescently Coupled Rectangular Microresonators in Silicon-on-Insulator with High Q-Values: Experimental Characterization. Photonics. 2017; 4(2):34. https://doi.org/10.3390/photonics4020034

Chicago/Turabian Style

Mendez-Astudillo, Manuel; Okayama, Hideaki; Nakajima, Hirochika. 2017. "Evanescently Coupled Rectangular Microresonators in Silicon-on-Insulator with High Q-Values: Experimental Characterization" Photonics 4, no. 2: 34. https://doi.org/10.3390/photonics4020034

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