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Device Miniaturization Using Stepped Multimode-Interference Couplers  

Ho, Kwang-Chun (Dept. of ICs Engineering, Hansung University)
Publication Information
Journal of the Institute of Electronics Engineers of Korea SD / v.47, no.1, 2010 , pp. 14-19 More about this Journal
Abstract
In this paper, a novel architecture for device miniaturization of multimode interference-based couplers (MMICs) is proposed by replacing conventionally designed MMICs by cascaded two-section stepped-width or stepped-index MMICs. For the 82% cross coupling efficiency in a stepped-width MMIC, the coupling length of device results in just 6.7% length reduction. However, for a stepped-width and stepped-index MMIC, the coupling efficiency increases to 93% and the length reduction of 9% occurs. Furthermore, with additional incorporation of tapered devices, it shows that a compact MMIC can be designed in which the coupling efficiency is 90% and the length is reduced to 25%.
Keywords
Stepped MMI Couplers; Optical Waveguide Devices; Device Miniaturization;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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