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A through-hole less microstrip line to waveguide transition is proposed in this paper. Conventional transitions are required through-holes in order to prevent unwanted emission in the substrate. However, the product cost of the transition is increased by making through-holes. In addition, the through-holes will be broken by heat deformation of the dielectric so that the characteristics of the transition...
In this study, we have investigated the possibility of MgZnCdSe, BeZnTe, and BeZnSeTe II-VI materials for green LDs and LEDs. At first, we fabricated light emitting devices using these materials on InP substrates by MBE. The device was composed of a 10 nm-thick BeZnSeTe QW active layer sandwiched by MgSe/BeZnSeTe superlattice (SL) barrier layers, Cl-doped MgSe/ZnCdSe SL n-cladding, and N-doped MgSe/BeZnTe...
Complex manufacturing processes such as substrate manufacturing could be alive because they change continuously and cyclically in order to improve their health. The health management technology has been proposed as general solution framework for complex systems like manufacturing process. In this article, the System of Systems aspects of the technology and its application are discussed. Firstly, the...
We demonstrate periodical poling in adhered Zn-doped LiNbO/sub 3/ with an insulating layer and achieved an efficient quasi-phase-matched difference-frequency-generation device that has an adhered ridge waveguide structure.
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