FUNDAMENTAL AREAS OF PHENOMENOLOGY(INCLUDING APPLICATIONS) |
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Compact Wavelength Demultiplexer Structure Based on Side-Coupled Cavities |
CHEN Zhao1,2, SONG Gang1,2, YU Li1,2**, CHEN Jian-Jun1,2, XIAO Jing-Hua1,2 |
1State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876 2School of Science, Beijing University of Posts and Telecommunications, Beijing 100876
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Cite this article: |
CHEN Zhao, SONG Gang, YU Li et al 2012 Chin. Phys. Lett. 29 104210 |
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Abstract A novel structure based on a side-coupled cavity for optical wavelength demultiplexing is proposed and demonstrated numerically by using the two-dimensional finite element method. It is found that the transmission wavelength of each channel can be tuned by adjusting the geometrical parameters of the structure and the material filling the side-coupled cavity. Moreover, by introducing a reflection nanocavity, the value of the transmitted-peak can be improved significantly. The results of theoretical analysis and simulation are well consistent with each other.
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Received: 18 May 2012
Published: 01 October 2012
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PACS: |
42.82.Et
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(Waveguides, couplers, and arrays)
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42.82.Gw
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(Other integrated-optical elements and systems)
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42.79.-e
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(Optical elements, devices, and systems)
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52.25.Fi
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(Transport properties)
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Abstract
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