| FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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A Highly Compact Third-Order Silicon Elliptical Micro-Ring Add-Drop Filter with a Large Free Spectral Range |
| Huan Guan1, Zhi-Yong Li1, Hai-Hua Shen2,3**, Rui Wang1, Yu-De Yu1** |
1State Key Laboratory on Integrated Optoelectronics, Institute of Semiconductors, Chinese Academy of Sciences, Beijing 100083
2University of Chinese Academy of Sciences, Beijing 100049
3State Key Laboratory of Software Development Environment, Beihang University, Beijing 100191
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Abstract We demonstrate a highly compact third-order elliptical micro-ring add-drop filter based on a silicon-on-insulator wafer. The elliptical micro-ring resonator has a major radius of 6 μm (minor radius of 4.112 μm) and a large free spectral range of 18 nm. Experimental results show a box-like channel dropping response, which has a 3 dB bandwidth of $\sim$2.7 nm, high out-of-band signal rejection of around 40 dB and a very low drop loss ($ < $0.5 dB). Simulation agrees well with the experiments. The footprint of the whole chip is only 0.0003 mm$^{2}$.
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Received: 19 December 2016
Published: 30 March 2017
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| PACS: |
42.79.Ci
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(Filters, zone plates, and polarizers)
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42.60.Da
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(Resonators, cavities, amplifiers, arrays, and rings)
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42.79.Sz
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(Optical communication systems, multiplexers, and demultiplexers?)
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| Fund: Supported by the National High Technology Research and Development Program of China under Grant No 2015AA016904, the National Key Research and Development Plan of China under Grant No 2016YFB0402502, and the National Natural Science Foundation of China under Grant No 61275065. |
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