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Applied Sciences
Special Issues
Microwave Photonics Signal Generation and Processing
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Microwave Photonics Signal Generation and Processing

A special issue of Applied Sciences (ISSN 2076-3417). This special issue belongs to the section "Electrical, Electronics and Communications Engineering".

Deadline for manuscript submissions: closed (22 April 2022) | Viewed by 1977

Special Issue Editor

Prof. Dr. Bo Yang

E-Mail Website
Guest Editor
School of Communication Engineering, Hangzhou Dianzi University, Hangzhou 310018, China
Interests: microwave photonics signal generation and processing; microwave photonic radar; radio over fiber

Special Issue Information

Dear Colleagues,

We are inviting submissions to the Special Issue on Microwave Photonics Signal Generation and Processing.

Microwave photonics, as a new interdisciplinary field integrating microwave technology and photonic technology, has been widely used in the fields of communication, sensing, biology, medicine, aerospace, military and security. With the development of electronic information systems to broadband, array and miniaturization, microwave photonics is considered to be one of the key technologies to solve the speed and bandwidth bottlenecks faced by information systems. Microwave photonics techniques and systems, such as microwave photonics signal generation, microwave photonics filters, microwave photonics mixers, photonics ADC/DAC, microwave photonics sensing and measurement, microwave photonics radars, and intelligent microwave photonics technology, are attracting more and more interest from the research community.

In this Special Issue, we invite submissions exploring cutting-edge research and recent advances in the fields of microwave photonics signal generation and processing. Both theoretical and experimental studies are welcome, as well as comprehensive review papers.

Prof. Dr. Bo Yang
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

  • microwave photonics
  • microwave photonics signal generation
  • microwave photonics filter, microwave photonics mixer
  • photonics analog to digital/digital to analog conversion
  • microwave photonics sensing and measurement
  • microwave photonics radar
  • intelligent microwave photonics technology

Published Papers (1 paper)

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Research

11 pages, 2445 KiB  
Article
Photo-Generation of Tunable Microwave Carriers at 2 µm Wavelengths Using Double Sideband with Carrier Suppression Modulation
by Di Ji, Zhitao Hu, Nan Ye, Fufei Pang and Yingxiong Song
Appl. Sci. 2022, 12(6), 3172; https://doi.org/10.3390/app12063172 - 20 Mar 2022
Viewed by 1552
Abstract
At 2 µm wavelengths (149.9 THz), hollow-core photonics band gap fibers have higher light power damage thresholds, stable polarization states, and lower losses of 0.1 dB/km. Additionally, a thulium-doped fiber amplifier can provide a gain of >35 dB. Specifically, an indium-rich InGaAs photodetector [...] Read more.
At 2 µm wavelengths (149.9 THz), hollow-core photonics band gap fibers have higher light power damage thresholds, stable polarization states, and lower losses of 0.1 dB/km. Additionally, a thulium-doped fiber amplifier can provide a gain of >35 dB. Specifically, an indium-rich InGaAs photodetector shows a naturally higher photoresponsivity at 2 µm wavelengths than the C-band. Therefore, using tunable photo-generated microwave technology at 2 µm wavelengths could achieve higher photo-to-electric power conversion efficiencies for higher RF output power applications using the same method at the same frequency. Here, a double sideband with the carrier suppression modulation method was experimentally applied on 2 µm wavelengths to generate tunable and stable microwave carriers. Comparison experiments were also applied on the 1.55 µm (193.4 THz)/1.31 µm wavelengths (228.8 THz) based on the same indium-rich InGaAs photodetector. Through normalization on the wavelength-corresponded squared external quantum efficiency to visualize the photo-to-electric power conversion efficiency at different wavelengths under the same input optical signal power, the ratio between the results at 2 µm wavelengths and C/O-band is abstracted as 1.31/1.98, approaching theoretical estimations. This corresponds to a power conversion efficiency increasement of ~1.16 dB/~2.98 dB. To our knowledge, this is the first study on 2 micron wavelengths that proves the corresponding high efficiency power conversion property. Full article
(This article belongs to the Special Issue Microwave Photonics Signal Generation and Processing)
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