Shoichiro Matsumoto

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The use of two-level intensity signal for interleaved polling with adaptive cycle time (IPACT) in passive optical networks (PONs) is presented. In the scheme, two different optical powers are used by two-grouped optical network units (ONUs) for their OOK modulation formats, and combined through the passive optical coupler on the way to the optical line(More)
This paper proposes the design method of novel resonant elements with four axial symmetry designed by using the genetic algorithm(GA). Designing a reflectarray, it is desirable for the resonant element to have a low cross-polarization and dual-polarization property, in addition to providing an ideal reflection phase. Then, we verified effectiveness of the(More)
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