Broadband Silicon Nitride Power Splitter Based on Bent Directional Couplers with Low Thermal Sensitivity [PDF]
Micromachines, 2022 Directional couplers, as power splitters, have provided a significant contribution for light splitting and combining in silicon photonics. However, the splitting ratio of conventional directional couplers is very sensitive to wavelength, which limits the
Donghao Li +7 more
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Reconfigurable fiber-to-waveguide coupling module enabled by phase-change material incorporated switchable directional couplers [PDF]
Scientific Reports, 2022 In silicon photonics, grating-assisted fiber-to-waveguide couplers provide out-of-plane coupling to facilitate wafer-level testing; however, their limited bandwidth and efficiency restrict their use in broadband applications.
Bishal Bhandari, Sang-Shin Lee
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Branch Waveguide Couplers with a frequency of 510 GHz for Terahertz Transmit/Receive Isolation Applications [PDF]
MicromachinesTo address the requirement of functioning as a transmit/receive isolation device in terahertz transceiver systems, in this paper, we present two high−isolation multi−branch waveguide directional couplers operating at a center frequency of 510 GHz. One is
Hao Li, Dehai Zhang, Jin Meng, Li Wang
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Designing a Downsized Quadrature Directional Coupler [PDF]
Telfor Journal, 2021 To miniaturize directional couplers, the replacement of their quarter-wave sections with electrodynamic structures with equivalent characteristics at smaller physical dimensions is used.
D. A. Letavin
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Microwave directional couplers [PDF]
, 2010 This document contains the study of "Microwave directional couplers". Initiating with a waveguiding system, we are looking for solutions of Maxwell's equations, then we focus on the TEM Transmission Lines and we introduce the microstrip lines that are ...
Sánchez Sierra, Carlos
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A fixed phase tunable directional coupler based on coupling tuning [PDF]
Scientific ReportsThe field of photonic integrated circuits has witnessed significant progress in recent years, with a growing demand for devices that offer high-performance reconfigurability.
Yang Yang +4 more
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IEEE Access, 2021 A new concept of broadband equal-split coupled-line directional couplers is proposed. The proposed couplers are based on coupled-line sections, all having the same coupling coefficient, and feature frequency characteristics similar to the ones obtained ...
Kinga Gawel +5 more
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The fractional comparative study of the non-linear directional couplers in non-linear optics
Results in Physics, 2021 A new extended direct algebraic method is applied to extract new traveling wave solutions for non-linear directional couplers with the optical meta-materials.
Muhammad Imran Asjad +5 more
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Methodology for Fabrication-Tolerant Planar Directional Couplers
IEEE Photonics Journal, 2022 A new methodology for realizing fabrication-tolerant planar directional couplers is proposed and experimentally demonstrated. Performance of power splitting and WDM couplers can be made highly tolerant to typical process errors when an appropriate center-
Choon Kong Lai +5 more
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Channel Optical Waveguides and Directional Couplers in GaAs -- Imbedded and Ridged [PDF]
, 1973 Two-channel imbedded directional couplers were fabricated with proton implantation, yielding complete light transfer in 2 mm. Ridged channel guides were fabricated by ion-micromachining epitaxial layers, and a method of directional coupling was ...
Garmire, E. +4 more
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