applsci-logo

Journal Browser

Journal Browser

Advanced Research in Optical Waveguides

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Optics and Lasers".

Deadline for manuscript submissions: closed (20 October 2024) | Viewed by 2032

Special Issue Editor


E-Mail Website
Guest Editor
Department of Photonics, National Cheng Kung University, No. 1 University Road, Tainan 701, Taiwan
Interests: silicon photonics; integrated optics; optical communications; quantum optics; quantum control
Special Issues, Collections and Topics in MDPI journals

Special Issue Information

Dear Colleagues,

Optical waveguides have redefined the way we manipulate and transmit light, playing a pivotal role in an array of applications, spanning telecommunications, quantum computing, integrated optics, and beyond. This Special Issue aims to connect leading researchers, scientists, and engineers, and offer them a platform to showcase their pioneering research, exchange insights, and present cutting-edge developments in the design, fabrication, characterization, and application of optical waveguides.

The scope of the Special Issue includes, but is not limited to, the following:

  • Novel Design and Fabrication Techniques: Explore innovative approaches in the design and fabrication of optical waveguides for enhanced light manipulation and signal control.
  • Integrated Photonics: Present advancements in the integration of optical waveguide devices, including modulators, switches, splitters, and resonators, for on-chip optical signal processing and communication.
  • Coupling Strategies: Present advancements in the integration of optical waveguide devices, focusing on novel coupling strategies for improved light coupling between waveguides and other photonic components.
  • Quantum Photonics: Showcase the role of optical waveguides in quantum information processing, quantum communication, and quantum-enhanced sensing.

Prof. Dr. Shuo-Yen Tseng
Guest Editor

Manuscript Submission Information

Manuscripts should be submitted online at www.mdpi.com by registering and logging in to this website. Once you are registered, click here to go to the submission form. Manuscripts can be submitted until the deadline. All submissions that pass pre-check are peer-reviewed. Accepted papers will be published continuously in the journal (as soon as accepted) and will be listed together on the special issue website. Research articles, review articles as well as short communications are invited. For planned papers, a title and short abstract (about 100 words) can be sent to the Editorial Office for announcement on this website.

Submitted manuscripts should not have been published previously, nor be under consideration for publication elsewhere (except conference proceedings papers). All manuscripts are thoroughly refereed through a single-blind peer-review process. A guide for authors and other relevant information for submission of manuscripts is available on the Instructions for Authors page. Applied Sciences is an international peer-reviewed open access semimonthly journal published by MDPI.

Please visit the Instructions for Authors page before submitting a manuscript. The Article Processing Charge (APC) for publication in this open access journal is 2400 CHF (Swiss Francs). Submitted papers should be well formatted and use good English. Authors may use MDPI's English editing service prior to publication or during author revisions.

Keywords

  • optical waveguides
  • waveguide couplers
  • integrated photonics
  • photonic devices
  • integrated optics
  • quantum photonics
  • waveguide fabrication techniques
  • coupling strategies
  • light coupling mechanisms

Benefits of Publishing in a Special Issue

  • Ease of navigation: Grouping papers by topic helps scholars navigate broad scope journals more efficiently.
  • Greater discoverability: Special Issues support the reach and impact of scientific research. Articles in Special Issues are more discoverable and cited more frequently.
  • Expansion of research network: Special Issues facilitate connections among authors, fostering scientific collaborations.
  • External promotion: Articles in Special Issues are often promoted through the journal's social media, increasing their visibility.
  • e-Book format: Special Issues with more than 10 articles can be published as dedicated e-books, ensuring wide and rapid dissemination.

Further information on MDPI's Special Issue polices can be found here.

Published Papers (2 papers)

Order results
Result details
Select all
Export citation of selected articles as:

Research

10 pages, 3262 KiB  
Article
High-Tolerance Grating Couplers for Vertical Backside Coupling
by Jui-Hung Chen, Arthur D. Bouamra, Chia-Ling Wu, Andrea Fiore and Shuo-Yen Tseng
Appl. Sci. 2024, 14(23), 11015; https://doi.org/10.3390/app142311015 - 27 Nov 2024
Viewed by 710
Abstract
To facilitate convenient packaging of photonic integrated circuits on a fiber tip, a silicon grating coupler designed for vertical backside coupling has been developed. In order to comply with foundry capabilities and streamline the fabrication processes, the grating coupler features a minimum feature [...] Read more.
To facilitate convenient packaging of photonic integrated circuits on a fiber tip, a silicon grating coupler designed for vertical backside coupling has been developed. In order to comply with foundry capabilities and streamline the fabrication processes, the grating coupler features a minimum feature size larger than 200 nm and a single-etched structure on silicon. By inverse design-based optimization, the vertical backside grating coupler achieves a coupling efficiency of nearly 40% (−3.97 dB), while showcasing high fabrication and misalignment tolerance. Full article
(This article belongs to the Special Issue Advanced Research in Optical Waveguides)
Show Figures

Figure 1

12 pages, 2450 KiB  
Article
Loop-Terminated Mach–Zehnder Interferometer Integrated with Functional Polymer for CO2 Gas Sensing
by Muhammad A. Butt
Appl. Sci. 2024, 14(11), 4714; https://doi.org/10.3390/app14114714 - 30 May 2024
Cited by 4 | Viewed by 880
Abstract
In this work, a numerical study on the loop-terminated Mach–Zehnder interferometer (LT-MZI) structure for CO2 gas sensing applications is carried out via the finite element method. The sensing arm is covered with a polyhexamethylene biguanide (PHMB) polymer which is highly receptive to [...] Read more.
In this work, a numerical study on the loop-terminated Mach–Zehnder interferometer (LT-MZI) structure for CO2 gas sensing applications is carried out via the finite element method. The sensing arm is covered with a polyhexamethylene biguanide (PHMB) polymer which is highly receptive to CO2 gas. The refractive index of the host material decreases due to the absorption of the CO2 gas resulting in a shift in the interference pattern of the LT-MZI structure. As a result, a redshift in the wavelength is observed in the transmission spectrum of the device. The sensitivity of the device is estimated at 7.63 pm/ppm, 34.46 pm/ppm, and 74.78 pm/ppm for the sensing arm lengths of 5 µm, 10 µm, and 15 µm, respectively. The sensitivity can be further enhanced, however, at the cost of the bigger footprint of the device. Utilizing the innovative sensor design, a comprehensive range of CO2 gas concentrations spanning from 0 to 524 ppm is effectively detected. This compact and highly sensitive device serves as a vital tool for monitoring indoor CO2 levels, fostering a healthier breathing environment for all occupants. Full article
(This article belongs to the Special Issue Advanced Research in Optical Waveguides)
Show Figures

Figure 1

Back to TopTop