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We demonstrate an add/drop filter based on coupled vertical gratings on silicon. The concept is extended to implement a 1 by 4 wavelength division multiplexer with 3nm bandwidth, 1dB insertion loss and 16dB crosstalk suppression.
In this paper, the authors present that the offset-FILP fed MSA which located the FILP from the center of the patch, can increase the height of the FILP and moderate the restriction of substrates thickness. The authors also show the relationship between the input impedance and the feeding geometry, and investigate the maximum bandwidth of the offset-FILP fed MSA as well as that of the original model...
A wavelength selective add/drop filter based on coupled vertical gratings is proposed for applications in wavelength division multiplexing on silicon. We demonstrate tailoring of device bandwidth and channel location.
A cladding-modulated Bragg grating implemented using periodic placements of silicon cylinders in the cladding along a silicon waveguide is proposed. Modeling results are verified experimentally, demonstrating coupling strengths differing by an order of magnitude.
A strongly coupled, chirped Bragg grating with sinusoidally modulated sidewalls is proposed for on-chip dispersion compensation. The device bandwidth, magnitude and sign of dispersion may be engineered for specific dispersion compensation requirements.
A microstrip antenna (MSA) has a number of useful properties. However, its narrow bandwidth characteristic is disadvantage in applying to practical wireless systems. Some of the conventional techniques for widening bandwidth for the MSA are using thick structures, adding parasitic patches or using electromagnetically coupled feed. In this paper, we proposed a folded inverted L-shaped probe (FILP)...
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