Results 11 to 20 of about 15,288 (305)
Coulomb blockade directional coupler [PDF]
Applied Physics Letters, 2005 A tunable directional coupler based on Coulomb Blockade effect is presented. Two electron waveguides are coupled by a quantum dot to an injector waveguide. Electron confinement is obtained by surface Schottky gates on single GaAs/AlGaAs heterojunction. Magneto-electrical measurements down to 350 mK are presented and large transconductance oscillations ...
PINGUE, Pasqualantonio +5 more
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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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A Transistorized Directional Coupler
IEEE Transactions on Circuit Theory, 1968 In previous papers an active directional coupler using a triode, [1],[2] and its use in a bidirectional broad-band amplifier, [3] has been described. It is obvious that it is important to investigate how such a device can be realized using semiconductor techniques.
Denoth F., Pellegrini B.
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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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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.
doaj +1 more source
Ion beam micromachining of integrated optics components [PDF]
, 1973 Thin film integrated optics components such as light guides, modulators, directional couplers, and polarizers demand high quality edge smoothness and high resolution pattern formation in dimensions down to submicrometer size.
Garmire, E. +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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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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