You are currently viewing a new version of our website. To view the old version click .

885 Results Found

  • Article
  • Open Access
6 Citations
5,543 Views
13 Pages

Laser-Based Mobile Visible Light Communication System

  • Yuqi Hou,
  • Zhichong Wang,
  • Zengxin Li,
  • Junhui Hu,
  • Chicheng Ma,
  • Xiaoqian Wang,
  • Liang Xia,
  • Guangyi Liu,
  • Jianyang Shi and
  • Ziwei Li
  • + 3 authors

13 May 2024

Mobile visible light communication (VLC) is key for integrating lighting and communication applications in the 6G era, yet there exists a notable gap in experimental research on mobile VLC. In this study, we introduce a mobile VLC system and investig...

  • Article
  • Open Access
2 Citations
1,789 Views
15 Pages

29 August 2023

The success of laser communications heavily relies on the stiffness, dynamic properties, static performance, and manufacturability of the U-frame. The U-frame is a fundamental element in satellite-to-ground laser communication telescopes. However, th...

  • Article
  • Open Access
17 Citations
3,076 Views
14 Pages

Beam Scanning and Capture of Micro Laser Communication Terminal Based on MEMS Micromirrors

  • Xuan Wang,
  • Junfeng Han,
  • Chen Wang,
  • Meilin Xie,
  • Peng Liu,
  • Yu Cao,
  • Feng Jing,
  • Fan Wang,
  • Yunhao Su and
  • Xiangsheng Meng

27 June 2023

With the development of space laser communication and the planned deployment of satellite Internet constellations, there is a growing demand for microminiature laser communication terminals. To meet the requirements of size, weight and power (SWaP),...

  • Article
  • Open Access
13 Citations
4,126 Views
8 Pages

Bias Current of Semiconductor Laser: An Unsafe Key for Secure Chaos Communication

  • Daming Wang,
  • Longsheng Wang,
  • Pu Li,
  • Tong Zhao,
  • Zhiwei Jia,
  • Zhensen Gao,
  • Yuanyuan Guo,
  • Yuncai Wang and
  • Anbang Wang

In this study, we have proposed and numerically demonstrated that the bias current of a semiconductor laser cannot be used as a key for optical chaos communication, using external-cavity lasers. This is because the chaotic carrier has a signature of...

  • Article
  • Open Access
3 Citations
1,852 Views
20 Pages

11 February 2025

Space-based gravitational wave detection uses an equilateral triangular satellite constellation with inter-satellite laser heterodyne interferometry to measure displacement variations caused by gravitational waves. Inter-satellite laser communication...

  • Article
  • Open Access
917 Views
25 Pages

To investigate the influence of different water quality conditions on the underwater transmission performance of laser communication signals, this paper systematically analyzes the absorption and scattering characteristics of the underwater laser com...

  • Article
  • Open Access
16 Citations
6,204 Views
15 Pages

Shipborne Acquisition, Tracking, and Pointing Experimental Verifications towards Satellite-to-Sea Laser Communication

  • Dong He,
  • Qiang Wang,
  • Xiang Liu,
  • Zhijun Song,
  • Jianwei Zhou,
  • Zhongke Wang,
  • Chunyang Gao,
  • Tong Zhang,
  • Xiaoping Qi and
  • Yi Tan
  • + 5 authors

19 September 2019

Acquisition, tracking, and pointing (ATP) is a key technology in free space laser communication that has a characteristically high precision. In this paper, we report the acquisition and tracking of low-Earth-orbit satellites using shipborne ATP and...

  • Article
  • Open Access
1 Citations
2,891 Views
22 Pages

OSIRIS4CubeSat—The World’s Smallest Commercially Available Laser Communication Terminal

  • Benjamin Rödiger,
  • Christian Roubal,
  • Fabian Rein,
  • René Rüddenklau,
  • Anil Morab Vishwanath and
  • Christopher Schmidt

The New Space movement led to an exponential increase in the number of the smallest satellites in orbit in the last two decades. The number of required communication channels increased with that as well and revealed the limitations of classical radio...

  • Review
  • Open Access
18 Citations
5,855 Views
21 Pages

Research Progress of Monolithic Integrated DFB Laser Arrays for Optical Communication

  • Shen Niu,
  • Yue Song,
  • Ligong Zhang,
  • Yongyi Chen,
  • Lei Liang,
  • Ye Wang,
  • Li Qin,
  • Peng Jia,
  • Cheng Qiu and
  • Yuxin Lei
  • + 3 authors

21 July 2022

Photonic integrated circuits (PICs) play a leading role in modern information and communications technology. Among the core devices in PICs is the distributed feedback (DFB) multi-wavelength semiconductor laser array. Multi-wavelength semiconductor l...

  • Article
  • Open Access
946 Views
16 Pages

High-Precision Calibration Technology and Experimental Verification for Dual-Axis Laser Communication Systems

  • Wenyan Li,
  • Xiaolei Zhang,
  • Lei Zhang,
  • Xiang Wei,
  • Guoxi Luo,
  • Peng Zhang and
  • Zhipeng Xue

22 August 2025

With the continuous improvement of remote sensing satellite resolution, laser communication technology has gained significant traction. The pointing accuracy of ground-based laser communication terminals is critical for the stability of satellite&nda...

  • Article
  • Open Access
3 Citations
1,995 Views
16 Pages

12 May 2025

Channel modeling of seawater is essential for understanding the transmission process of underwater laser light and optimizing the system design of underwater wireless laser communication. This study systematically examined the transmission characteri...

  • Article
  • Open Access
10 Citations
2,962 Views
14 Pages

Theory of AdaDelSPGD Algorithm in Fiber Laser-Phased Array Multiplex Communication Systems

  • Jiayu Chen,
  • Jinsheng Liu,
  • Long Han,
  • Mingru Ci,
  • Dongbo Che,
  • Lihong Guo and
  • Hongjun Yu

16 March 2022

Stochastic parallel gradient descent (SPGD) algorithm is one of the most promising methods for effective coherent beam combination. However, the algorithm also has some disadvantages, such as slow convergence speed and local extremum. This paper prop...

  • Article
  • Open Access
7 Citations
5,322 Views
24 Pages

15 May 2019

This study presents a device for tracking, locating and communicating underwater vehicles as they work near the seabed. The system includes a base station placed on the seabed and a reflective module mounted on a hybrid underwater profiler (HUP). The...

  • Article
  • Open Access
5 Citations
2,473 Views
17 Pages

11 September 2023

This paper proposes a non-common-view axis alignment method for the alignment requirements of airborne laser communication systems. The system consists of a ground transmitting end and an airborne relay terminal. The ground transmitting end uses a ca...

  • Letter
  • Open Access
2 Citations
3,275 Views
14 Pages

TRC-Based High-Precision Spot Position Detection in Inter-Satellite Laser Communication

  • Qing Li,
  • Hongyang Guo,
  • Shaoxiong Xu,
  • Yangjie Xu,
  • Qiang Wang,
  • Dong He,
  • Zhenming Peng and
  • Yongmei Huang

2 October 2020

Inter-satellite laser communication (Is-OWC) is one of the main space optical communication technologies currently studied in various countries. In recent years, a kind of Is-OWC communication terminal without independent beacon light has appeared. S...

  • Letter
  • Open Access
2,857 Views
13 Pages

18 December 2020

The Compressed Sensing (CS) camera can compress images in real time without consuming computing resources. Applying CS theory in the Laser Communication (LC) system can minimize the assumed transmission bandwidth (normally from a satellite to a groun...

  • Article
  • Open Access
4 Citations
2,180 Views
13 Pages

To analyze the intensity of atmospheric turbulence in a satellite–ground laser communication link, it is important to consider the effect of increased atmospheric turbulence caused by wind speed. Atmospheric turbulence causes a change in the re...

  • Article
  • Open Access
2 Citations
2,044 Views
14 Pages

Satellite laser communication can achieve high-speed, high-precision, and high-security broadband communication without being constrained by the electromagnetic spectrum, which has attracted attention. So, this paper proposes the use of a high-altitu...

  • Article
  • Open Access
759 Views
17 Pages

This paper proposes a systematic ground experimental method to address the insufficient initial pointing accuracy of optical terminals in free space optical communication (FSO). By utilizing a multi-coordinate system transformation model combined wit...

  • Article
  • Open Access
8 Citations
3,917 Views
12 Pages

20 January 2022

It is accepted that there exists two kinds of atmospheric turbulence in the Earth’s aerosphere—Kolmogorov and non-Kolmogorov turbulence; therefore, it is important to research their combined impacts on laser-satellite communications. In t...

  • Article
  • Open Access
9 Citations
2,738 Views
13 Pages

8 December 2022

This paper proposes the use of quasi-stationary aircraft and reconfigurable intelligent surfaces (RIS) to improve the system performance in satellite–terrestrial laser communication downlink. Single-input multiple-output (SIMO) technology is ap...

  • Communication
  • Open Access
2 Citations
3,674 Views
13 Pages

A Computational Model of Cn2 Profile Inversion for Atmospheric Laser Communication in the Vertical Path

  • Haifeng Yao,
  • Yuxi Cao,
  • Weihao Wang,
  • Qingfang Jiang,
  • Jie Cao,
  • Qun Hao,
  • Zhi Liu,
  • Peng Zhang,
  • Yidi Chang and
  • Guiyun Zhang
  • + 1 author

25 June 2023

In this paper, an atmospheric structure constant Cn2 model is proposed for evaluating the channel turbulence degree of atmospheric laser communication. First, we derive a mathematical model for the correlation between the atmospheric coherence length...

  • Article
  • Open Access
8 Citations
2,279 Views
16 Pages

24 October 2023

Piezoelectric fast steering mirror (PZT FSM) is the core component of the fine tracking system for space laser communication, and its actuator is a piezoelectric ceramic. Consequently, there is a hysteretic nonlinear disturbance throughout the entire...

  • Article
  • Open Access
218 Views
16 Pages

18 December 2025

We propose a compact, beaconless inter-satellite laser communication tracking system based on direct fiber control to address the complexity and resource demands of conventional pointing, acquisition, and tracking (PAT) architectures. Unlike traditio...

  • Article
  • Open Access
723 Views
19 Pages

22 August 2025

To address the challenge of directly applying space laser communication systems to dynamic underwater environments, this paper integrates coordinate transformation matrices with underwater positioning systems, proposing an ultra-short baseline (USBL)...

  • Article
  • Open Access
327 Views
20 Pages

25 November 2025

Aiming at the control challenges of strong nonlinearity, time-varying parameters and multi-channel disturbance coupling in multi-address laser communication networking caused by the common inertial reference of multi-directional mirror strapdown stab...

  • Letter
  • Open Access
12 Citations
3,530 Views
12 Pages

29 October 2020

Visible light communication is an emerging high-speed optical wireless communication technology that can be a candidate to alleviate pressure on conventional radio frequency-based technology. In this paper, for the first time, the advanced modulation...

  • Article
  • Open Access
6 Citations
3,085 Views
19 Pages

27 September 2019

In this study, a sliding mode control (SMC) algorithm was proposed based on a novel reaching law to solve the nonlinear disturbance problem of a ground-based laser communication turntable. This algorithm is a chatter-free method, in which the coeffic...

  • Article
  • Open Access
2 Citations
1,926 Views
18 Pages

In order to optimize space laser communication networking, the 2:1 transmissions for all reflectors on a multi-address transceiver can be removed. However, without the 2:1 transmissions, the reflectors exhibit doubled optical coupling effect in rotat...

  • Article
  • Open Access
4 Citations
2,754 Views
14 Pages

The signal-receiving end of acquisition, pointing, and tracking (APT) systems applied to intersatellite laser communication terminals usually uses a fast-steering mirror (FSM) to control the fiber-coupling process, has a complex structural design, an...

  • Review
  • Open Access
25 Citations
7,380 Views
26 Pages

16 April 2022

Integrated optics, having the unique properties of small size, low loss, high integration, and high scalability, is attracting considerable attention and has found many applications in optical communications, fulfilling the requirements for the ever-...

  • Communication
  • Open Access
2 Citations
2,195 Views
9 Pages

Chaotic Optical Communication with Wavelength-Hopping Technology Based on Tunable Lasers

  • Mi Li,
  • Xinyu Zhang,
  • Yizhuo Zhang,
  • Zhiyuan Su,
  • Xue Wang and
  • Yijun Jiang

23 April 2023

With the development of communication technology, there is a more urgent demand for enhancing the security of data transmission. In order to improve the security of the traditional chaotic laser communication system, we propose a new scheme by the in...

  • Review
  • Open Access
36 Citations
5,898 Views
12 Pages

GaN Laser Diode Technology for Visible-Light Communications

  • Stephen P. Najda,
  • Piotr Perlin,
  • Tadek Suski,
  • Lucja Marona,
  • Mike Leszczyński,
  • Przemek Wisniewski,
  • Szymon Stanczyk,
  • Dario Schiavon,
  • Thomas Slight and
  • Malcolm A. Watson
  • + 3 authors

Gallium nitride (GaN) laser diodes (LDs) are considered for visible light communications (VLC) in free space, underwater, and in plastic optical fibers (POFs). A review of recent results is presented, showing high-frequency operation of AlGaInN laser...

  • Article
  • Open Access
1 Citations
1,626 Views
10 Pages

λ ∼ 4.7 μm Quantum Cascade Distributed-Feedback Lasers for Free-Space Communications

  • Morgan Turville-Heitz,
  • Robert Marsland,
  • Jae Ha Ryu,
  • Steven A. Jacobs,
  • Jeremy D. Kirch,
  • Tom Earles,
  • Steven Ruder,
  • Kevin Oresick,
  • Benjamin Knipfer and
  • Dan Botez
  • + 1 author

Quantum cascade lasers (QCLs) have emerged as promising candidate sources for free-space communications. High optical power densities, short photon lifetimes, and low internal capacitance are important factors influencing the transmission bandwidth....

  • Article
  • Open Access
4 Citations
1,538 Views
13 Pages

Key-Space-Enhanced Optical Chaos Secure Communication Scheme Using Integrated Mutually Coupled Lasers

  • Qingtian Li,
  • Yuanyuan Guo,
  • Zhiwei Jia,
  • Longsheng Wang and
  • Anbang Wang

5 December 2024

We present a key-space-enhanced optical chaos secure communication scheme using a pair of integrated four-section semiconductor lasers as transceivers, which are commonly driven by a DFB laser with bidirectional injection. The transceiver consists of...

  • Article
  • Open Access
900 Views
13 Pages

Integrated Terahertz FMCW Radar and FSK Communication Enabled by High-Speed Wavelength Tunable Lasers

  • Ryota Kaide,
  • Shenghong Ye,
  • Yiqing Wang,
  • Yuya Mikami,
  • Yuta Ueda and
  • Kazutoshi Kato

1 October 2025

In future 6G systems, integrated sensing and communication (ISAC) in the terahertz (THz) band are emerging as a key technology. Photomixing-based approaches offer advantages for the generation and control of THz waves due to their wide bandwidth and...

  • Article
  • Open Access
3 Citations
3,070 Views
17 Pages

17 January 2023

In this paper, we discuss the design and feasibility of a multifunctional laser instrument capable of precision ranging, time transfer, and wideband communications over interplanetary distances throughout our solar system. To simplify the communicati...

  • Article
  • Open Access
15 Citations
4,814 Views
10 Pages

Development and Space-Qualification of a Miniaturized CubeSat’s 2-W EDFA for Space Laser Communications

  • Alberto Carrasco-Casado,
  • Koichi Shiratama,
  • Dimitar Kolev,
  • Phuc V. Trinh,
  • Femi Ishola,
  • Tetsuharu Fuse and
  • Morio Toyoshima

The Japanese National Institute of Information and Communications Technology (NICT) is currently developing a high-performance laser-communication terminal for CubeSats aimed at providing a high-datarate communication solution for LEO satellites requ...

  • Article
  • Open Access
5 Citations
1,983 Views
14 Pages

It is well known that the dynamical characteristics of nano-lasers (NLs) have been extensively studied, but there is limited research on chaotic synchronization communication. In this paper, we propose a closed-loop system of mutually coupled NLs. Fi...

  • Article
  • Open Access
5 Citations
3,986 Views
14 Pages

Investigation of the Effect of Intra-Cavity Propagation Delay in Secure Optical Communication Using Chaotic Semiconductor Lasers

  • Elumalai Jayaprasath,
  • Zheng-Mao Wu,
  • Sivaraman Sivaprakasam,
  • Yu-Shuang Hou,
  • Xi Tang,
  • Xiao-Dong Lin,
  • Tao Deng and
  • Guang-Qiong Xia

The influence of intra-cavity propagation delay in message encoding and decoding using chaotic semiconductor lasers is numerically investigated. A message is encoded at the transmitter laser by a chaos shift keying scheme and is decoded at the receiv...

  • Article
  • Open Access
1 Citations
2,194 Views
17 Pages

18 August 2024

The utilization of chaotic optical communication, a physical layer security technology, has the potential to enhance the security of optical fiber networks. In this paper, we take knowledge acquired while teaching “A chaotic security system bas...

  • Communication
  • Open Access
1 Citations
1,799 Views
12 Pages

Impact of Motion Characteristics of Airborne Platforms on the Performance of Space Laser Communication Links

  • Xin Zhang,
  • Shiming Gao,
  • Zhi Liu,
  • Qingfang Jiang,
  • Lixin Meng,
  • Helong Wang and
  • Keyan Dong

When a platform carrying a space laser communication system moves through the atmosphere, the relative motion of the turret and the air produces fluctuations in the air density, which affects the beam propagation, and, hence, the laser communication...

  • Communication
  • Open Access
7 Citations
2,597 Views
11 Pages

15 February 2023

Chaotic secure communication schemes encounter a conflict of key space enhancement between the consistency and complexity of chaotic transceivers. In this paper, we propose a monolithically integrated multi-section semiconductor laser (MIMSL), used a...

  • Communication
  • Open Access
8 Citations
2,293 Views
10 Pages

Key Space Enhancement of Chaos Communication Using Semiconductor Lasers with Spectrum-Programmable Optoelectronic Feedback

  • Yuanyuan Guo,
  • Dongsheng Wang,
  • Longsheng Wang,
  • Zhiwei Jia,
  • Tong Zhao,
  • Pengfa Chang,
  • Yuncai Wang and
  • Anbang Wang

We propose a scheme for key-space-enhanced chaos secure communication using semiconductor lasers with spectrum-programmable optoelectronic feedback. This feedback consists of multiple parallel optoelectronic feedback loops composed of bandpass filter...

  • Article
  • Open Access
16 Citations
4,216 Views
11 Pages

We numerically investigate spin-controlled vertical-cavity surface-emitting lasers (spin-VCSELs) for local oscillators, which are based on an injection locking technique used in coherent optical communications. Under the spin polarization modulation...

  • Article
  • Open Access
6 Citations
4,774 Views
23 Pages

22 July 2022

Consider a constellation of over a hundred low Earth orbit satellites that aim to capture every point on Earth at least once a day. Clearly, there is a need to download from each satellite a large set of high-quality images on a daily basis. In this...

  • Article
  • Open Access
2 Citations
2,469 Views
9 Pages

Self-Start Multi-Wavelength Laser Source with Tunable Delay-Line Interferometer and Optical Fiber Reflector for Wireless Communication System

  • Amare-Mulatie Dehnaw,
  • Run-Kai Shiu,
  • Ruei-Bin Chen,
  • Jyun-Wei Li,
  • Yibeltal-Chanie Manie,
  • Hsing-Chih Liang and
  • Peng-Chun Peng

14 October 2021

The radio-over-fiber (RoF) technique has gained a lot of interest recently, as the millimeter-wave signals can be generated and delivered in the optical domain with the advantages of low attenuation, high capacity, and being free from electromagnetic...

  • Review
  • Open Access
10 Citations
9,209 Views
19 Pages

Overview of Space-Based Laser Communication Missions and Payloads: Insights from the Autonomous Laser Inter-Satellite Gigabit Network (ALIGN)

  • Othman I. Younus,
  • Amna Riaz,
  • Richard Binns,
  • Eamon Scullion,
  • Robert Wicks,
  • Jethro Vernon,
  • Chris Graham,
  • David Bramall,
  • Jurgen Schmoll and
  • Cyril Bourgenot

5 November 2024

This paper examines the growing adoption of laser communication (lasercom) in space missions and payloads for identifying emerging trends and key technology drivers of future optical communications satellite systems. It also presents a comprehensive...

  • Article
  • Open Access
868 Views
26 Pages

Stand Structure Extraction and Analysis of Camellia taliensis Communities in Qianjiazhai, Ailao Mountain, China, Based on Backpack Laser Scanning

  • Xiongfu Gao,
  • Xiaoqing Shi,
  • Weiheng Xu,
  • Zengquan Lan,
  • Juxiang He,
  • Huan Wang,
  • Leiguang Wang,
  • Ning Lu and
  • Guanglong Ou

11 August 2025

The stand structure of ancient tea tree (Camellia taliensis) communities is critical for maintaining their structural and functional stability. Therefore, this study employed backpack laser scanning (BLS) technology to extract individual tree paramet...

  • Article
  • Open Access
11 Citations
7,085 Views
18 Pages

Miniaturized Multi-Platform Free-Space Laser-Communication Terminals for Beyond-5G Networks and Space Applications

  • Alberto Carrasco-Casado,
  • Koichi Shiratama,
  • Dimitar Kolev,
  • Fumie Ono,
  • Hiroyuki Tsuji and
  • Morio Toyoshima

Beyond-5G (B5G) technology plays a pivotal role in the next generation of communication infrastructure to support the future Society 5.0, a concept introduced in the 5th Basic Plan for Science and Technology by the Japanese Cabinet to define the long...

of 18