A compact all-silicon temperature insensitive filter for WDM and bio-sensing applications [PDF]
, 2013 We propose a compact, temperature-insensitive, and all-silicon Mach-Zehnder interferometer filter that uses the polarization-rotating asymmetrical directional couplers. Temperature sensitivity of the filter is
Bogaerts, Wim +2 more
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Wave-based digital models of different branch-line couplers [PDF]
Serbian Journal of Electrical Engineering, 2020 Microwave and millimeter-wave communication systems require couplers in different applications. The aim of this paper is to construct simple wave digital models of directional couplers with two or three parallel lines.
Stošić Biljana P.
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Ultrafast laser inscription of mid-IR directional couplers for stellar interferometry [PDF]
, 2014 We report the ultrafast laser fabrication and mid-IR characterization (3.39 microns) of four-port evanescent field directional couplers. The couplers were fabricated in a commercial gallium lanthanum sulphide glass substrate using sub-picosecond laser ...
Arriola, Alexander +4 more
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Novel broadband design of SIW directional coupler
The Journal of Engineering, 2019 To enable broadband characteristic, a novel type of directional coupler based on slot coupling theories is proposed. Besides, this directional coupler is designed on the basis of substrate integrated waveguide.
Jia Wang, Tianqing Ling
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A six‐port network based on substrate integrated waveguide coupler with metal strips
IET Microwaves, Antennas & Propagation, 2022 In this study, a novel coupling structure based on half‐mode substrate‐integrated waveguide (HMSIW) is proposed with a small size and broad bandwidth. The HMSIW coupler is realised by connecting their equivalent magnetic walls with metal strips, which ...
Xiaojun Hu, Feng Xu
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Channel optical waveguide directional couplers [PDF]
, 1973 We report the first demonstration of channel optical waveguide directional couplers. The closely spaced channel waveguides were fabricated in GaAs by proton implantation.
Garmire, E. +4 more
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MEMS-enabled silicon photonic integrated devices and circuits [PDF]
, 2020 Photonic integrated circuits have seen a dramatic increase in complexity over the past decades. This development has been spurred by recent applications in datacenter communications and enabled by the availability of standardized mature technology ...
Bogaerts, Wim +8 more
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Symmetric polarization insensitive directional couplers fabricated by femtosecond laser waveguide writing [PDF]
, 2018 We study analytically the polarization behaviour of directional couplers composed of birefringent waveguides, showing that they can induce polarization transformations that depend on the specific input-output path considered.
Atzeni, Simone +5 more
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Investigation on Strong Coupling Behaviors of THz Subwavelength Directional Couplers
IEEE Photonics Journal, 2012 To achieve strong coupling, conventional fiber-based directional couplers often require complicated fabrication. Here, by placing two identical THz subwavelength fibers parallel to each other and by simply tuning the separation in between, we investigate
Tzu-Fang Tseng +5 more
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Reconfigurable electro-optical logic gates using a 2-layer multilayer perceptron
Scientific Reports, 2022 In this work, we aim to use the optical amplifiers, directional couplers and phase modulators to build the electro-optical gates. Thanks to the 2-layer-multilayer-perceptron structure, the inversion of matrix is performed to obtain the coupling ratio of ...
Chu-En Lin +3 more
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