Diffuse-LOS Optical Wireless Communication Across Wavy Water-Air-Interface Using UVA Light DOI Creative Commons
Chenyu Guo,

Zengxin Li,

Lulu Zha

et al.

IEEE Access, Journal Year: 2024, Volume and Issue: 12, P. 107959 - 107970

Published: Jan. 1, 2024

Underwater Wireless Optical Communication (UWOC) holds significant implications in the realms of marine scientific observation, military security, and resource utilization. Overcoming challenges associated with cross-medium information transmission represents a pivotal research frontier within domain underwater Internet Things (IoT). This paper investigates across water-air-interface ultraviolet light uplink communication presence waves. Different degrees diffuse-line-of-sight different sizes waves are studied link to assess their impact on performance. Using non-return-to-zero on-off keying (NRZ-OOK) modulation, data 17.4 Mbit/s is achieved lateral displacement 5 cm still water, 17.1 under aligned 12 mm wave amplitude condition. A method proposed reduce dependence relay when optical transmitter receiver not aligned, effectiveness using large conditions demonstrated. Bit error rate received power indicate that increasing size deviation transceivers both result channel attenuation channel, thus degrading

Language: Английский

Exploration on growth and characteristics of novel disordered Dy3+:Ca(Gd0.5Y0.5)Al3O7 melilite crystal for potential yellow laser DOI
Guoliang Deng, Min Xu,

Qiannan Fang

et al.

Optical Materials, Journal Year: 2025, Volume and Issue: unknown, P. 116786 - 116786

Published: Feb. 1, 2025

Language: Английский

Citations

0
Investigation on large modulation bandwidth InGaN-based blue laser diodes DOI
Junhui Hu, Haolin Jia, Zhongze Gu

et al.

Optics & Laser Technology, Journal Year: 2025, Volume and Issue: 185, P. 112601 - 112601

Published: Feb. 17, 2025

Language: Английский

Citations

0
High‐Speed Blue Laser Diodes with InGaN Quantum Barrier for Beyond 36 Gbps Visible Light Communications DOI Open Access
Haolin Jia, Junhui Hu, Zengyi Xu

et al.

Laser & Photonics Review, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 20, 2025

Abstract Laser‐based visible light communication (VLC) is emerging as a crucial technology for future applications like the Internet of Things and artificial intelligence. However, data transmission rate limited by modulation bandwidth laser diodes (LDs). This paper presents design fabrication blue GaN‐based short‐cavity (300 µm/500 µm) LDs with InGaN quantum barrier (QB) narrow ridge width 2 µm high‐speed VLC systems. Theoretical analyses band structure carrier distribution, along experimental results, reveal significant improvements in electro‐optical performance frequency response demonstrated QB. A high slope efficiency 1.85 W −1 , wall‐plug 29%, an intrinsic 3 dB exceeding 8 GHz are achieved. By using LD transmitter, system achieves record 36.5 Gbps. The shows larger operation window speed better temperature adaptability, marking substantial advancement links.

Language: Английский

Citations

0
GaN-Based Laser Diode with a Trapezoidal EBL and an Unintentionally Doped Layer Reaching 7.8 GHz Modulation Bandwidth DOI
Haolin Jia, Junhui Hu, Zhongze Gu

et al.

ACS Photonics, Journal Year: 2025, Volume and Issue: unknown

Published: April 1, 2025

Language: Английский

Citations

0
Stochastic Photoresponse‐Driven Perovskite TRNGs for Secure Encryption Systems DOI Creative Commons

Dante Ahn,

M.B. Lee,

Woochul Kim

et al.

Advanced Science, Journal Year: 2025, Volume and Issue: unknown

Published: Feb. 13, 2025

Abstract True random numbers are essential for ensuring information security and supporting simulations across various industries. With the exponential growth of data driven by advancements in artificial intelligence, robust encryption communications has become increasingly important. While software‐based deterministic number algorithms cost‐effective easy to use, they vulnerable attacks powerful supercomputers, highlighting need more secure alternatives. As portable electronic devices information‐gathering sensors proliferate, true generators (TRNGs) critical maintaining security. In this work, hybrid material‐based photodetectors composed anionic polymers perovskites that maximize stochastic photogeneration TRNG applications presented. By integrating perovskite with simple circuits, compact, low‐power have been developed versatile resilient environmental factors. These generate 10 000 bits s −1 without resets or delays, achieving significant miniaturization. The generated Mbit is validated through US National Institute Standards Technology (NIST) testing. Using a 480 000‐bit sequence, perfect image encryption, protection against hacking demonstrated. Additionally, can operate under external light even when embedded pork skin, realizing its potential as an implantable device personal authentication.

Language: Английский

Citations

0
Diffuse-LOS Optical Wireless Communication Across Wavy Water-Air-Interface Using UVA Light DOI Creative Commons
Chenyu Guo,

Zengxin Li,

Lulu Zha

et al.

IEEE Access, Journal Year: 2024, Volume and Issue: 12, P. 107959 - 107970

Published: Jan. 1, 2024

Underwater Wireless Optical Communication (UWOC) holds significant implications in the realms of marine scientific observation, military security, and resource utilization. Overcoming challenges associated with cross-medium information transmission represents a pivotal research frontier within domain underwater Internet Things (IoT). This paper investigates across water-air-interface ultraviolet light uplink communication presence waves. Different degrees diffuse-line-of-sight different sizes waves are studied link to assess their impact on performance. Using non-return-to-zero on-off keying (NRZ-OOK) modulation, data 17.4 Mbit/s is achieved lateral displacement 5 cm still water, 17.1 under aligned 12 mm wave amplitude condition. A method proposed reduce dependence relay when optical transmitter receiver not aligned, effectiveness using large conditions demonstrated. Bit error rate received power indicate that increasing size deviation transceivers both result channel attenuation channel, thus degrading

Language: Английский

Citations

1