Advances in Optical Channel Waveguides

A special issue of Electronics (ISSN 2079-9292). This special issue belongs to the section "Optoelectronics".

Deadline for manuscript submissions: closed (30 September 2022) | Viewed by 2844

Special Issue Editors


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Guest Editor
Department of Microelectronics, Faculty of Electrical Engineering, Czech Technical University in Prague, Technická 2, 166 27 Prague, Czech Republic
Interests: optical polymer waveguides; passive and active photonics structures; optical amplifiers

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Guest Editor
Department of Electrical Engineering, National Chung Hsing University, 145 Xingda Road, South District, Taichung 402, Taiwan
Interests: optical waveguides; plasmonics; photonics

Special Issue Information

Dear Colleagues,

Optical channel waveguides are considered to be candidates for optical signal processing applications in optical interconnections, sensors and other related areas. Optical waveguides are the dielectric layers with the higher refractive index transparent material embedded between lower refractive index material. Up to now many different waveguide materials have been used including silica, III–V compound semiconductors, optical glass and crystals including lithium niobite and also polymers. Different technologies have been also employed to achieve the fabrication of the channel waveguides including photo-resist patterning, laser and electron-beam direct writing with the following etching, roll-to-plate nanoimprinting, hot embossing, replication techniques using optical elastomers following doctor blade technique and etc. 

In recent years, there has been a continuous growth in the demand for data communications link capacity.  Existing interconnection and data processing technologies for shorter distances used mainly metal copper wiring connections, but due to the rising data-rates and their sensitivity to electromagnetic interference, it seems that light as a transmission medium for future interconnections and data processing is the right choice. Therefore, optical waveguides have played a key role not only for preset but also for future optics applications.

Topics for the Special Issue on Advances in Optical Channel Waveguides of Electronics include but are not limited to new materials, methods and applications in the following areas:

  • Theory, Modeling, and Design

Guided-wave optics, Beam optics, Gradient-index optics, Diffractive optics, Near-field optics, Nonlinear optics, Plasmonics

  • Materials and Fabrication

Polymers, Semiconductors, Crystals, Dielectric materials. Micro- and nano-fabrication, Nano-imprint, Laser processing, 3D printing, Optical manipulation, etc.

  • Passive Devices

Optical planar and channel waveguides, Splitters, Branching and mixing components, Microlenses, Multi/demultiplexers, Add-drop multiplexers.

  • Active Devices

Optical amplifiers, Lasers, Photo detectors, Optical imaging sensors, Solar cells, Energy harvesting devices, Switches, Modulators, Tunable devices, Wavelength converters etc.

Dr. Vaclav Prajzler
Dr. Wan-Shao Tsai
Guest Editor

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Keywords

  • optical waveguides
  • optical planar waveguides
  • optical channel waveguides
  • semiconductor material
  • crystals
  • dielectric materials
  • polymers
  • micro- and nano-fabrication
  • optical interconnects

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Published Papers (1 paper)

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Research

11 pages, 10115 KiB  
Article
Design of a Power Splitter Based on a 3D MMI Coupler at the Fibre-Tip
by Martin Ziman, Martin Feiler, Tomas Mizera, Anton Kuzma, Dusan Pudis and Frantisek Uherek
Electronics 2022, 11(18), 2815; https://doi.org/10.3390/electronics11182815 - 6 Sep 2022
Cited by 2 | Viewed by 1958
Abstract
Planar MMI couplers based on inorganic material platforms have played an essential role in photonic integrated circuits development. Advances in organic polymer fabrication techniques enable the design of components beyond a single plane, thus facilitating vertical integration for a wide range of components, [...] Read more.
Planar MMI couplers based on inorganic material platforms have played an essential role in photonic integrated circuits development. Advances in organic polymer fabrication techniques enable the design of components beyond a single plane, thus facilitating vertical integration for a wide range of components, including the MMI coupler. This paper presents the design of two 3D IP-dip polymer-based MMI power splitters operating in the near-infrared part of the spectrum at a wavelength of 1550 nm. The resulting output power ratio, modal field distributions, spectral characteristics, and the effects of input fibre misalignment are investigated using the beam propagation method. The fabrication method used to realise the designed splitters was direct laser writing. The function of the splitters was then verified by a highly resolved near-field scanning optical microscope. Full article
(This article belongs to the Special Issue Advances in Optical Channel Waveguides)
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