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Electronics
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Optical Fiber Communication: Prospects and Applications
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Optical Fiber Communication: Prospects and Applications

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

Deadline for manuscript submissions: closed (15 July 2024) | Viewed by 4468

Special Issue Editors

Dr. Danshi Wang

E-Mail Website
Guest Editor
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: optical fiber communication and network; optical performance monitoring; artificial intelligence; digital twin; blockchain; failure management; scientific computing; physics-informed machine learning
Special Issues, Collections and Topics in MDPI journals
Dr. Cheng Ju

E-Mail Website
Guest Editor
College of Electronic Information, Qingdao University, Qingdao 266071, China
Interests: coherent optical communication for long-haul and short-haul scenes; multi-aperture coherent free-space optical communication; optical direct detection for short distance transmission; 5G NR low orbit
Dr. Jin Li

E-Mail Website
Guest Editor
State Key Laboratory of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: optical performance monitoring; intelligent network slicing; fiber-wireless convergence access networks; cross-layer network optimization

Special Issue Information

Dear Colleagues,

Optical fiber communication is a key technology for the development of modern information society. It has the advantages of high bandwidth, low attenuation, minimal latency, and high security. Optical fiber communication as the cornerstone of massive data transmission has been widely used to support various applications. However, with the rapid growth of data traffic and the increasing demand for high-quality services, the traditional optical fiber communication systems are facing many challenges, such as spectrum scarcity, network complexity, and energy efficiency.

To address these challenges, this Special Issue aims to present the latest research progress and future prospects of optical fiber communication, with a focus on topics including, but not limited to, the following:

  • Digital twin for optical communications;
  • Wideband optical transmission systems;
  • Machine learning in optical communications;
  • Optical fiber channel modeling;
  • Optical network fault management;
  • Autonomous driving optical networks;
  • Advanced digital signal processing;
  • Fiber nonlinearity and mitigation;
  • Data center optical networks;
  • Optical network automation;
  • Resource allocation schemes;
  • Digital longitudinal monitoring;
  • Large language model for optical networks.

This Special Issue welcomes original and high-quality research papers, review articles, and short communications that cover the above-mentioned topics, as well as other related topics in optical fiber communication. The submissions should demonstrate the novelty, significance, and potential impact of the research work, and provide sufficient details and references for the reproducibility and verification of the results. The submissions will undergo a rigorous peer-review process by the editorial board and the reviewers of this Special Issue.

Dr. Danshi Wang
Dr. Cheng Ju
Dr. Jin Li
Guest Editors

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. Electronics 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 fiber communications
  • optical networks
  • digital twin
  • wideband optical transmissions
  • advanced digital signal processing
  • machine learning

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

Published Papers (3 papers)

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Research

15 pages, 5561 KiB  
Article
Space–Space–Wavelength and Wavelength–Space–Space Switch Structures for Flexible Optical Networks
by Wojciech Kabaciński and Atyaf Al-Tameemi
Electronics 2024, 13(13), 2544; https://doi.org/10.3390/electronics13132544 - 28 Jun 2024
Viewed by 925
Abstract
In the literature, three-stage switching networks have been considered for nodes in elastic optical networks, where switches with spectrum conversion capability are placed in the first and third stages (wavelength–space–wavelength—WSW) or only in the second stage (space–wavelength–space—SWS). This paper proposes three-stage switching networks [...] Read more.
In the literature, three-stage switching networks have been considered for nodes in elastic optical networks, where switches with spectrum conversion capability are placed in the first and third stages (wavelength–space–wavelength—WSW) or only in the second stage (space–wavelength–space—SWS). This paper proposes three-stage switching networks where the switches with spectrum conversion functions are located only in the first stage (wavelength–space–space—WSS) or only in the third stage (space–space–wavelength—SSW). For these networks, the strict-sense non-blocking conditions are derived and proved, and the number of elements required for their construction is assessed. It turns out that the proposed networks can be constructed with 50% fewer tunable spectrum converters than in the WSW networks, and this reduction is even greater in the case of the SWS networks. Full article
(This article belongs to the Special Issue Optical Fiber Communication: Prospects and Applications)
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18 pages, 1914 KiB  
Article
When Large Language Models Meet Optical Networks: Paving the Way for Automation
by Danshi Wang, Yidi Wang, Xiaotian Jiang, Yao Zhang, Yue Pang and Min Zhang
Electronics 2024, 13(13), 2529; https://doi.org/10.3390/electronics13132529 - 27 Jun 2024
Cited by 4 | Viewed by 1884
Abstract
Since the advent of GPT, large language models (LLMs) have brought about revolutionary advancements in all walks of life. As a superior natural language processing (NLP) technology, LLMs have consistently achieved state-of-the-art performance in numerous areas. However, LLMs are considered to be general-purpose [...] Read more.
Since the advent of GPT, large language models (LLMs) have brought about revolutionary advancements in all walks of life. As a superior natural language processing (NLP) technology, LLMs have consistently achieved state-of-the-art performance in numerous areas. However, LLMs are considered to be general-purpose models for NLP tasks, which may encounter challenges when applied to complex tasks in specialized fields such as optical networks. In this study, we propose a framework of LLM-empowered optical networks, facilitating intelligent control of the physical layer and efficient interaction with the application layer through an LLM-driven agent (AI-Agent) deployed in the control layer. The AI-Agent can leverage external tools and extract domain knowledge from a comprehensive resource library specifically established for optical networks. This is achieved through user input and well-crafted prompts, enabling the generation of control instructions and result representations for autonomous operation and maintenance in optical networks. To improve LLM’s capability in professional fields and stimulate its potential on complex tasks, the details of performing prompt engineering, establishing domain knowledge library, and implementing complex tasks are illustrated in this study. Moreover, the proposed framework is verified on two typical tasks: network alarm analysis and network performance optimization. The good response accuracies and semantic similarities of 2400 test situations exhibit the great potential of LLM in optical networks. Full article
(This article belongs to the Special Issue Optical Fiber Communication: Prospects and Applications)
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13 pages, 6407 KiB  
Article
Investigation of IEEE 802.16e LDPC Code Application in PM-DQPSK System
by Jiaxin Xue, Yupeng Li, Yichao Zhang, Xiao Wu and Yanyue Zhang
Electronics 2024, 13(10), 1887; https://doi.org/10.3390/electronics13101887 - 11 May 2024
Viewed by 1140
Abstract
With the development of the Internet and information technology, optical fiber communication systems need to meet people’s information demand for large capacity and high speed. High-order phase modulation and channel multiplexing can improve the capacity and data rate of optical fiber communication systems, [...] Read more.
With the development of the Internet and information technology, optical fiber communication systems need to meet people’s information demand for large capacity and high speed. High-order phase modulation and channel multiplexing can improve the capacity and data rate of optical fiber communication systems, but they also bring the problem of bit error. To improve the transmission quality and reliability of optical fiber communication systems, forward error correction (FEC) coding techniques are commonly used, which serve as the fundamental approach to enhance the quality and reliability of fiber optic communication systems, ensuring that the received data remain accurate and reliable. The FEC in optical fiber communication systems is divided into three generations. The first generation FEC is mainly hard decision codewords, represented as RS code. The second generation FEC is mainly cascaded code, which stands for interleaved cascaded code. The third generation of FEC mainly refers to soft decision codes, which are represented as low-density parity-check (LDPC) codes. As a kind of FEC, LDPC codes stand out as pivotal contributors in the field of optical communication and have gained remarkable attention due to exceptional error correction performance and low decoding complexity. Based on IEEE802.16e standard, LDPC code with specific code length and rate is compiled and simulated in MATLAB and VPItransmissionMaker 10.1 and successfully incorporated into polarization multiplexed differential quadrature phase shift keying (PM-DQPSK) coherent optical transmission system. The simulation results indicate that the bit error rate (BER) can be reduced to 10−3 when the optical signal-to-noise ratio (OSNR) reaches 14.2 dB, and the BER experiences a reduction by nearly three orders of magnitude when the OSNR is 17.2 dB. These findings underscore the efficacy of LDPC codes in significantly improving the performance of optical communication systems, particularly in scenarios demanding robust error correction capabilities. This study provides valuable, significant results regarding the potential of LDPC codes for enhancing the reliability of optical transmission in real-world applications. Full article
(This article belongs to the Special Issue Optical Fiber Communication: Prospects and Applications)
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