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Photonics
Special Issues
Advancements in Optical Information Processing and Communication Technologies
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Advancements in Optical Information Processing and Communication Technologies

A special issue of Photonics (ISSN 2304-6732). This special issue belongs to the section "Optical Communication and Network".

Deadline for manuscript submissions: 31 May 2025 | Viewed by 2257

Special Issue Editors

Dr. Tao Yang

E-Mail Website
Guest Editor
State Key Lab of Information Photonics and Optical Communications, Beijing University of Posts and Telecommunications, Beijing 100876, China
Interests: ultra-high-speed coherent optical transmission; next-generation optical access network; optical network performance monitoring; wired/wireless fused optical communication
Special Issues, Collections and Topics in MDPI journals
Dr. Jiabin Cui

E-Mail Website
Guest Editor
State Key Laboratory of Information Photonics and Optical Communications, School of Information and Communication Engineering, Beijing University of Posts and Telecommunications, No. 10 Xitucheng Road, Haidian District, Beijing 100876, China
Interests: photonic signal processing; optical parametric amplifier; nonlinear optics; nonlinear optical devices; phase-sensitive amplifier
Dr. Kunpeng Zhai

E-Mail Website
Guest Editor
Institute of Intelligent Photonics, Nankai University, Tianjin 300071, China
Interests: microwave photonics; optical communication; optoelectronic fusion; high-speed optoelectronics; integrated optoelectronics

Special Issue Information

Dear Colleagues,

Since the breakthrough of low-loss optical fiber in 1970, optical communication has become one of the most popular communication methods due to its high bandwidth, low loss and large transmission range. Since then, optical communication has changed the way the world is connected. Optical communication technology has been widely applied in various fields of industry and life, and it involves many important disciplines. Its connectivity covers a variety of scenarios, including transoceanic transmission, fixed networks, free space communications, and converged access. With the increasing demand for bandwidth, new optical communication theories and technologies are constantly being explored, including emerging disciplines such as multi-band optical transmission, optical information processing, and integrated photonic devices that have developed in recent years. The advantages of optical information processing technology include its high speed, high precision, non-contact, non-destructive quality, and other characteristics. It is applied to various scenarios including optical computing, optical recognition, optical storage, and optical transmissions. It combines communication and optics, successfully solving many scientific problems and injecting new vitality into the field, hence becoming a very active research direction.

With the advent of digital transformation, digital economy, and digital society, the fields of optical information processing and communication will face a new round of active periods and important technological changes. At the same time, optical information processing and communication technology will be widely applied in fields such as cloud computing, the Internet of Things, and artificial intelligence.

Several key topics in the field of optical information processing and communication include the following:

  • Optic communication systems and subsystems;
  • Advanced optical transmissions and interconnections;
  • Photonic signal processing;
  • Optical computing for AI acceleration;
  • The integration and packaging of optical devices.

Dr. Tao Yang
Dr. Jiabin Cui
Dr. Kunpeng Zhai
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. Photonics is an international peer-reviewed open access monthly 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 transmissions
  • optical interconnections
  • optical information processing
  • optical computing
  • integrated photonic devices
  • nonlinear optics

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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

23 pages, 5235 KiB  
Article
Tunable All-Optical Pattern Recognition System Based on Nonlinear Optical Loop Mirror for Bit-Flip BPSK Targets
by Ying Tang, Ziyi Kang, Xin Li, Ningjing Liang, Jinyong Chang and Genqing Bian
Photonics 2025, 12(4), 342; https://doi.org/10.3390/photonics12040342 - 3 Apr 2025
Viewed by 149
Abstract
As the basic physical infrastructure of various networks, optical networks are crucial to the advancement of information technology. Meanwhile, as new technologies emerge, the security of optical networks is facing serious threats. To improve the security of optical networks, optoelectronic firewalls primarily leverage [...] Read more.
As the basic physical infrastructure of various networks, optical networks are crucial to the advancement of information technology. Meanwhile, as new technologies emerge, the security of optical networks is facing serious threats. To improve the security of optical networks, optoelectronic firewalls primarily leverage all-optical pattern recognition to perform direct detection and analysis of data transmitted through the optical network at the optical layer. However, the current all-optical pattern recognition system still faces some problems when deployed in optical networks, including phase-lockingand relatively low recognition efficiency and scalability. In this paper, we propose a tunable all-optical pattern recognition system based on a nonlinear optical loop mirror (NOLM) for bit-flip BPSK targets. The operational principles and simulation setup of the proposed system are comprehensively described. Numerical simulations demonstrate that the system can accurately recognize and determine the position of 4-bit and 8-bit bit-flip BPSK targets in 16-bit input data with tunable frequencies of 192.8 THz and 193.4 THz at a data rate of 100 Gbps. Finally, the impact of input noise is evaluated by extinction ratio (ER), contrast ratio (CR), Q factor, bit error rate (BER), amplitude modulation (AM), and signal-to-noise ratio (SNR) under both frequencies. Full article
(This article belongs to the Special Issue Advancements in Optical Information Processing and Communication Technologies)
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10 pages, 2712 KiB  
Article
Photonic-Assisted Multi-Tone Microwave Frequency Measurement Based on Pulse Identification
by Xiaobing Xie, Chao Luo, Huiyun Tang, Jinfeng Du, Ming Li and Wei Li
Photonics 2025, 12(1), 1; https://doi.org/10.3390/photonics12010001 - 24 Dec 2024
Viewed by 653
Abstract
We report a photonic-assisted method for measuring the frequencies of a multi-tone microwave with high accuracy based on pulse identification. The unknown microwave signal and a linearly chirped signal are modulated to an optical carrier using a dual-polarization Mach–Zehnder modulator. Carrier-suppressed single-sideband modulation [...] Read more.
We report a photonic-assisted method for measuring the frequencies of a multi-tone microwave with high accuracy based on pulse identification. The unknown microwave signal and a linearly chirped signal are modulated to an optical carrier using a dual-polarization Mach–Zehnder modulator. Carrier-suppressed single-sideband modulation avoids the generation of undesired frequency components after photodetection. An electrical bandpass filter with a narrow bandwidth selects the beat signal between the unknown signal and the linearly chirped optical tone. A pulse, generated by the beat signal, can be observed using an oscilloscope (OSC). By identifying the beating pulse position, we can accurately determine the frequency of the unknown signal. The single-tone and multi-tone microwave signal ranges of 6–16 GHz and 26–36 GHz are successfully measured, respectively. The measurement errors for single-tone and multi-tone signals are both less than ±1 MHz. Full article
(This article belongs to the Special Issue Advancements in Optical Information Processing and Communication Technologies)
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16 pages, 5588 KiB  
Article
Enhanced Carrier Phase Recovery Using Dual Pilot Tones in Faster-than-Nyquist Optical Transmission Systems
by Jialin You, Tao Yang, Yuchen Zhang and Xue Chen
Photonics 2024, 11(11), 1048; https://doi.org/10.3390/photonics11111048 - 7 Nov 2024
Cited by 1 | Viewed by 1028
Abstract
Compared with high spectrum efficiency faster-than-Nyquist (FTN) backbone network, an enhanced carrier phase recovery based on dual pilot tones is more sensitive to capital cost in FTN metropolitan areas as well as inter-datacenter optical networks. The use of distributed feedback (DFB) lasers is [...] Read more.
Compared with high spectrum efficiency faster-than-Nyquist (FTN) backbone network, an enhanced carrier phase recovery based on dual pilot tones is more sensitive to capital cost in FTN metropolitan areas as well as inter-datacenter optical networks. The use of distributed feedback (DFB) lasers is a way to effectively reduce the cost. However, under high symbol rate FTN systems, equalization-enhanced phase noise (EEPN) induced by a DFB laser with large linewidth will significantly deteriorate the system performance. What is worse, in FTN systems, tight filtering introduces inter-symbol interference so severe that the carrier phase estimation (CPE) algorithm of the FTN systems is more sensitive to EEPN, thus it will lead to a more serious cycle slip problem. In this paper, an enhanced carrier phase recovery based on dual pilot tones is proposed to mitigate EEPN and suppress cycle slip, in which the chromatic dispersion (CD)-aware Tx and LO laser phase noise is estimated, respectively. Offline experiments results under 40 Gbaud polarization multiplexing (PM) 16-quadrature amplitude modulation (QAM) FTN wavelength division multiplexing (FTN-WDM) systems at 0.9 acceleration factor, 5 MHz laser linewidth, and 500 km transmission demonstrate that the proposed algorithm could bring about 0.65 dB improvement of the required SNR for the normalized generalized mutual information of 0.9 compared with the training sequence-based cycle slip suppression carrier phase estimation (TS-CSS) algorithm. Full article
(This article belongs to the Special Issue Advancements in Optical Information Processing and Communication Technologies)
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