Emergence of Biased Errors in Imperfect Optical Circuits

2021 ◽  
Vol 16 (6) ◽  
Author(s):  
Fulvio Flamini
Keyword(s):  
Optical Circuits

New simulation tools for multilevel optical circuits

1999 ◽  
Author(s):  
Yves Moreau ◽  
Jerome Porque ◽  
Paul Coudray ◽  
Pascal Etienne ◽  
Kada Kribich
Keyword(s):  
Simulation Tools ◽  
Optical Circuits

WAVELENGTH DEMULTIPLEXING IN METAL–INSULATOR–METAL PLASMONIC WAVEGUIDES

2014 ◽  
Vol 28 (04) ◽  
pp. 1450025 ◽  
Author(s):  
XIANKUN YAO
Keyword(s):  
Transmission Efficiency ◽  
Plasmonic Waveguides ◽  
Metal Insulator ◽  
Metal Insulator Metal ◽  
Integrated Optical ◽  
Potential Applications ◽  
Wavelength Demultiplexing ◽  
Optical Circuits ◽  
Difference Time ◽  
Mim Waveguide

In this paper, we have numerically investigated a novel kind of ultra-compact wavelength demultiplexing (WDM) in high-confined metal–insulator–metal (MIM) plasmonic waveguides. It is found that the drop transmission efficiency of the filtering cavity can be strongly enhanced by introducing a side-coupled cavity in the MIM waveguide. The theoretical analysis is verified by the finite-difference time-domain simulations. Through cascading the filtering units, a highly effective triple-wavelength demultiplexer is proposed by selecting the specific separation between the two coupled cavities of filtering units. Our results may find potential applications for the nanoscale WDM systems in highly integrated optical circuits and networks.

scholarly journals On-chip continuous-variable quantum entanglement

Nanophotonics ◽  
2016 ◽  
Vol 5 (3) ◽  
pp. 469-482 ◽  
Author(s):  
Genta Masada ◽  
Akira Furusawa
Keyword(s):  
Quantum Information ◽  
Integrated Circuits ◽  
Quantum Entanglement ◽  
Information Science ◽  
Essential Feature ◽  
Continuous Variable ◽  
Entangled State ◽  
Discrete Variable ◽  
Light Beams ◽  
Optical Circuits

AbstractEntanglement is an essential feature of quantum theory and the core of the majority of quantum information science and technologies. Quantum computing is one of the most important fruits of quantum entanglement and requires not only a bipartite entangled state but also more complicated multipartite entanglement. In previous experimental works to demonstrate various entanglement-based quantum information processing, light has been extensively used. Experiments utilizing such a complicated state need highly complex optical circuits to propagate optical beams and a high level of spatial interference between different light beams to generate quantum entanglement or to efficiently perform balanced homodyne measurement. Current experiments have been performed in conventional free-space optics with large numbers of optical components and a relatively large-sized optical setup. Therefore, they are limited in stability and scalability. Integrated photonics offer new tools and additional capabilities for manipulating light in quantum information technology. Owing to integrated waveguide circuits, it is possible to stabilize and miniaturize complex optical circuits and achieve high interference of light beams. The integrated circuits have been firstly developed for discrete-variable systems and then applied to continuous-variable systems. In this article, we review the currently developed scheme for generation and verification of continuous-variable quantum entanglement such as Einstein-Podolsky-Rosen beams using a photonic chip where waveguide circuits are integrated. This includes balanced homodyne measurement of a squeezed state of light. As a simple example, we also review an experiment for generating discrete-variable quantum entanglement using integrated waveguide circuits.

scholarly journals Thermally Tunable Hybrid Photonic Architecture for Nonlinear Optical Circuits

ACS Photonics ◽  
2018 ◽  
Vol 5 (11) ◽  
pp. 4323-4329 ◽  
Author(s):  
Marina Radulaski ◽  
Ranojoy Bose ◽  
Tho Tran ◽  
Thomas Van Vaerenbergh ◽  
David Kielpinski ◽  
...  
Keyword(s):  
Nonlinear Optical ◽  
Optical Circuits

Layer-to-Layer Grating Coupler Based on Hydrogenated Amorphous Silicon for Three-Dimensional Optical Circuits

2012 ◽  
Vol 51 ◽  
pp. 120203 ◽  
Author(s):  
Joonhyun Kang ◽  
Yuki Atsumi ◽  
Manabu Oda ◽  
Tomohiro Amemiya ◽  
Nobuhiko Nishiyama ◽  
...  
Keyword(s):  
Amorphous Silicon ◽  
Three Dimensional ◽  
Hydrogenated Amorphous Silicon ◽  
Grating Coupler ◽  
Optical Circuits ◽  
Hydrogenated Amorphous
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