All-Optical Plasmonic Switches Based on Asymmetric Directional Couplers Incorporating Bragg Gratings
Sign Up to like & getrecommendations! Published in 2019 at "Plasmonics"
DOI: 10.1007/s11468-019-01106-5
Abstract: In this paper, a novel technique for realization of all-optical plasmonic switches is presented. The proposed structure is based on an asymmetric metal-insulator-metal plasmonic directional coupler. A Bragg grating is used on one of the… read more here.
Keywords: optical plasmonic; based asymmetric; plasmonic switches; input ... See more keywords
Nanocavity mediated directional coupler in plasmonics waveguides
Sign Up to like & getrecommendations! Published in 2021 at "Optics Communications"
DOI: 10.1016/j.optcom.2021.127160
Abstract: Abstract Nanocavity mediated directional coupler in plasmonics waveguides is proposed and numerically investigated. Perfect directionality with enhanced light intensity coupled to the desired direction is obtained through the chiral eigenmode of the nanocavity excited by… read more here.
Keywords: nanocavity; mediated directional; coupler plasmonics; directional coupler ... See more keywords
Improved silica-PLC Mach-Zehnder interferometer type optical switches with error dependence compensation of directional coupler
Sign Up to like & getrecommendations! Published in 2017 at "Optics and Laser Technology"
DOI: 10.1016/j.optlastec.2016.10.016
Abstract: Abstract For the most popular structure of planer lightwave circuit (PLC) 2×2 thermo-optic switches, Mach-Zehnder interferometer (MZI), a full range of splitting ratio errors of directional coupler (DC) are investigated. All the parameters determining the… read more here.
Keywords: silica plc; type optical; zehnder interferometer; mach zehnder ... See more keywords
Design of a C-band polarization rotator-splitter based on a mode-evolution structure and an asymmetric directional coupler
Sign Up to like & getrecommendations! Published in 2018 at "Journal of Semiconductors"
DOI: 10.1088/1674-4926/39/12/124008
Abstract: A C-band polarization rotator-splitter based on a mode-evolution structure and an asymmetric directional coupler is proposed. The mode-evolution structure is designed in a bi-level taper through which the TM0 mode can evolve into the TE1… read more here.
Keywords: evolution structure; mode; mode evolution; band ... See more keywords
A Multiband Directional Coupler Using SOI CMOS for RF Front-End Applications
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Microwave and Wireless Components Letters"
DOI: 10.1109/lmwc.2017.2783196
Abstract: This letter introduces a novel multiband directional coupler for RF front-end applications. Conventional narrowband directional couplers are widely used for mobile applications because of their compact size. However, excessive power loss due to strong coupling… read more here.
Keywords: multiband directional; coupler; end applications; front end ... See more keywords
Ultra-Compact Subwavelength-Grating-Assisted Polarization-Independent Directional Coupler
Sign Up to like & getrecommendations! Published in 2019 at "IEEE Photonics Technology Letters"
DOI: 10.1109/lpt.2019.2937890
Abstract: We propose and experimentally demonstrate an ultra-compact, low-loss polarization-independent directional coupler on the silicon-on-insulator (SOI) platform. By exploiting subwavelength gratings in the directional coupler, the coupling strength could be made equal for both transverse-electric and… read more here.
Keywords: ultra compact; directional coupler; independent directional; coupler ... See more keywords
A Novel and Compact Eight-Port Forward-Wave Directional Coupler With Arbitrary Coupling Level Design Using Four-Mode Control Technology
Sign Up to like & getrecommendations! Published in 2017 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2016.2623709
Abstract: We propose a novel, eight-port, forward-wave directional coupler with periodically patterned ground structures. The input impedances of the four modes for the proposed coupler can be matched, and the phase difference between the even–even and… read more here.
Keywords: wave directional; port forward; eight port; coupler ... See more keywords
Miniaturization of Power Divider and 90° Hybrid Directional Coupler for C-Band Applications Using Empty Substrate-Integrated Coaxial Lines
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2018.2828089
Abstract: This paper presents the practical realization of a power divider and a 90° hybrid directional coupler in an empty substrate-integrated coaxial line (ESICL) for C-band frequency applications. This new type of transmission line is very… read more here.
Keywords: hybrid directional; power; power divider; empty substrate ... See more keywords
Tightly Coupled Directional Coupler Using Slotted-Microstrip Line
Sign Up to like & getrecommendations! Published in 2018 at "IEEE Transactions on Microwave Theory and Techniques"
DOI: 10.1109/tmtt.2018.2847696
Abstract: This paper presents the theory and implementation of a novel microstrip directional coupler (DC) with a high coupling coefficient that can achieve the value of 0 dB. The coupling region is a slotted-microstrip line that… read more here.
Keywords: tightly coupled; directional coupler; microstrip line; slotted microstrip ... See more keywords
A Silicon Chip-Based Waveguide Directional Coupler for Terahertz Applications
Sign Up to like & getrecommendations! Published in 2020 at "IEEE Transactions on Terahertz Science and Technology"
DOI: 10.1109/tthz.2020.3022018
Abstract: We propose a waveguide directional coupler design with weak coupling using silicon-based suspended coupling microstrip probes and the split-block type of construction common in integrated millimeter wave components. WR4.0 coupler prototypes with standard UG-387 flanges… read more here.
Keywords: waveguide directional; directional coupler; chip based; coupler ... See more keywords
Decoupling Network for Closely Spaced Tx/Rx Antennas Using a Directional Coupler and Transmission Lines
Sign Up to like & getrecommendations! Published in 2023 at "International Journal of Antennas and Propagation"
DOI: 10.1155/2023/5557062
Abstract: This paper presents an efficient decoupling network using a single directional coupler and transmission lines for closely spaced Tx/Rx antennas in single polarized radar applications. The isolation between both antennas can be enhanced by controlling… read more here.
Keywords: coupler; decoupling network; transmission lines; directional coupler ... See more keywords