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The purpose of this paper is to design and characterize the wavelength selective coupler (WSC). The device which use the concept of coupled mode theory is designed using SU-8 polymer on silica substrate parameters with compliance of FTTH wavelength such as wavelengths 1310 nm (upstream data/voice), 1480 nm (downstream data/voice), 1550 nm (video) and 1625 nm (testing). The performance of the devices...
A new concept on resonator's coupling coefficient is applied to various structures. The main idea is to discriminate the magnetic and electric contributions based on the coupled mode theory. Strong to weak coupling of open-ring resonators when they are faced on broadsides, is clarified together with the magnetic coupling's survival at the long distance. Combline and interdigital couplings are well...
The coupling between negative and positive index medium waveguides is investigated theoretically in this paper. A coupled mode theory is developed for such a waveguide system and its validity is verified. Interesting phenomena in the coupled waveguides are demonstrated, which occur in the case when the negative index medium waveguide in isolation guides its mode backward. A new type of coupled mode...
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