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Proceedings Paper

The modeling of MMI structures for signal processing applications
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Paper Abstract

Microring resonators are promising candidates for photonic signal processing applications. However, almost all resonators that have been reported so far use directional couplers or 2×2 multimode interference (MMI) couplers as the coupling element between the ring and the bus waveguides. In this paper, instead of using 2×2 couplers, novel structures for microring resonators based on 3×3 MMI couplers are proposed. The characteristics of the device are derived using the modal propagation method. The device parameters are optimized by using numerical methods. Optical switches and filters using Silicon on Insulator (SOI) then have been designed and analyzed. This device can become a new basic component for further applications in optical signal processing. The paper concludes with some further examples of photonic signal processing circuits based on MMI couplers.

Paper Details

Date Published: 12 February 2008
PDF: 7 pages
Proc. SPIE 6896, Integrated Optics: Devices, Materials, and Technologies XII, 68961G (12 February 2008); doi: 10.1117/12.765526
Show Author Affiliations
Thanh Trung Le, La Trobe Univ. (Australia)
Laurence W. Cahill, La Trobe Univ. (Australia)

Published in SPIE Proceedings Vol. 6896:
Integrated Optics: Devices, Materials, and Technologies XII
Christoph M. Greiner; Christoph A. Waechter, Editor(s)

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