Micro-LED as a Promising Candidate for High-Speed Visible Light Communication
Visible Light Communication (VLC) technology is an emerging technology using visible light modulation that, in the modern world, will mainly facilitate high-speed internet connectivity. VLC provides tremendous advantages compared to conventional radio frequency, such as a higher transmission rate, h...
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| Format: | Article |
| Language: | English |
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MDPI AG
2020-10-01
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| Series: | Applied Sciences |
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| Online Access: | https://www.mdpi.com/2076-3417/10/20/7384 |
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| author | Konthoujam James Singh Yu-Ming Huang Tanveer Ahmed An-Chen Liu Sung-Wen Huang Chen Fang-Jyun Liou Tingzhu Wu Chien-Chung Lin Chi-Wai Chow Gong-Ru Lin Hao-Chung Kuo |
| author_facet | Konthoujam James Singh Yu-Ming Huang Tanveer Ahmed An-Chen Liu Sung-Wen Huang Chen Fang-Jyun Liou Tingzhu Wu Chien-Chung Lin Chi-Wai Chow Gong-Ru Lin Hao-Chung Kuo |
| author_sort | Konthoujam James Singh |
| collection | DOAJ |
| description | Visible Light Communication (VLC) technology is an emerging technology using visible light modulation that, in the modern world, will mainly facilitate high-speed internet connectivity. VLC provides tremendous advantages compared to conventional radio frequency, such as a higher transmission rate, high bandwidth, low-power consumption, no health hazards, less interference, etc., which make it more prominent in recent days. Due to their outstanding features, including low cost, low power consumption, etc., µ-light-emitting diodes (LEDs) have gained considerable attention for VLC implementation, but mostly for the ability to be used for lighting as well as communications. In this review paper, we will focus mainly on recent developments in VLC applications and various factors affecting the modulation bandwidth of VLC devices. Numerous factors, such as quantum confined stark effect (QCSE), carrier lifetime, carrier recombination time, crystal orientation, etc. affect the modulation bandwidth of LEDs, and more information will be discussed in the following sections. This paper will focus on VLC applications based on LEDs but mainly on semipolar μ-LEDs and μ-LED-based arrays with high bandwidths. Another important application of VLC is underwater optical wireless communication (UOWC), which has drawn a huge interest in marine exploration and underwater connectivity, but still faces some challenges because visible light is being used. In addition, this paper will focus on how the current VLC system modulation bandwidth can be enhanced. Many methods have been introduced, such as decreasing the active layer thickness or effective active area or using doping, but the bandwidth is restricted by the recombination time when the system configuration reaches its limit. Therefore, it is important to find alternative ways such as optimizing the system, using the blue filter or using the equalization technology, which will be addressed later. Overall, this review paper provides a brief overview of the VLC-based system performance and some of its potential prospects. |
| first_indexed | 2024-03-10T15:27:07Z |
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| id | doaj.art-f590eee9068e47f3aaf41ef112c81577 |
| institution | Directory Open Access Journal |
| issn | 2076-3417 |
| language | English |
| last_indexed | 2024-03-10T15:27:07Z |
| publishDate | 2020-10-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Applied Sciences |
| spelling | doaj.art-f590eee9068e47f3aaf41ef112c815772023-11-20T18:00:48ZengMDPI AGApplied Sciences2076-34172020-10-011020738410.3390/app10207384Micro-LED as a Promising Candidate for High-Speed Visible Light CommunicationKonthoujam James Singh0Yu-Ming Huang1Tanveer Ahmed2An-Chen Liu3Sung-Wen Huang Chen4Fang-Jyun Liou5Tingzhu Wu6Chien-Chung Lin7Chi-Wai Chow8Gong-Ru Lin9Hao-Chung Kuo10Department of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electrical Engineering and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanDepartment of Electronic Science, Fujian Engineering Research Center for Solid-State Lighting, Xiamen University, Xiamen 361005, ChinaInstitute of Photonic System, National Chiao Tung University, Tainan 71150, TaiwanDepartment of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanGraduate Institute of Photonics and Optoelectronics and Department of Electrical Engineering, National Taiwan University, No. 1, Sec. 4, Roosevelt Road, Taipei 10617, TaiwanDepartment of Photonics and Graduate Institute of Electro-Optical Engineering, College of Electrical and Computer Engineering, National Chiao Tung University, Hsinchu 30010, TaiwanVisible Light Communication (VLC) technology is an emerging technology using visible light modulation that, in the modern world, will mainly facilitate high-speed internet connectivity. VLC provides tremendous advantages compared to conventional radio frequency, such as a higher transmission rate, high bandwidth, low-power consumption, no health hazards, less interference, etc., which make it more prominent in recent days. Due to their outstanding features, including low cost, low power consumption, etc., µ-light-emitting diodes (LEDs) have gained considerable attention for VLC implementation, but mostly for the ability to be used for lighting as well as communications. In this review paper, we will focus mainly on recent developments in VLC applications and various factors affecting the modulation bandwidth of VLC devices. Numerous factors, such as quantum confined stark effect (QCSE), carrier lifetime, carrier recombination time, crystal orientation, etc. affect the modulation bandwidth of LEDs, and more information will be discussed in the following sections. This paper will focus on VLC applications based on LEDs but mainly on semipolar μ-LEDs and μ-LED-based arrays with high bandwidths. Another important application of VLC is underwater optical wireless communication (UOWC), which has drawn a huge interest in marine exploration and underwater connectivity, but still faces some challenges because visible light is being used. In addition, this paper will focus on how the current VLC system modulation bandwidth can be enhanced. Many methods have been introduced, such as decreasing the active layer thickness or effective active area or using doping, but the bandwidth is restricted by the recombination time when the system configuration reaches its limit. Therefore, it is important to find alternative ways such as optimizing the system, using the blue filter or using the equalization technology, which will be addressed later. Overall, this review paper provides a brief overview of the VLC-based system performance and some of its potential prospects.https://www.mdpi.com/2076-3417/10/20/7384visible light communication (VLC)semipolarµ-LEDsmodulation bandwidthQCSEUOWC |
| spellingShingle | Konthoujam James Singh Yu-Ming Huang Tanveer Ahmed An-Chen Liu Sung-Wen Huang Chen Fang-Jyun Liou Tingzhu Wu Chien-Chung Lin Chi-Wai Chow Gong-Ru Lin Hao-Chung Kuo Micro-LED as a Promising Candidate for High-Speed Visible Light Communication Applied Sciences visible light communication (VLC) semipolar µ-LEDs modulation bandwidth QCSE UOWC |
| title | Micro-LED as a Promising Candidate for High-Speed Visible Light Communication |
| title_full | Micro-LED as a Promising Candidate for High-Speed Visible Light Communication |
| title_fullStr | Micro-LED as a Promising Candidate for High-Speed Visible Light Communication |
| title_full_unstemmed | Micro-LED as a Promising Candidate for High-Speed Visible Light Communication |
| title_short | Micro-LED as a Promising Candidate for High-Speed Visible Light Communication |
| title_sort | micro led as a promising candidate for high speed visible light communication |
| topic | visible light communication (VLC) semipolar µ-LEDs modulation bandwidth QCSE UOWC |
| url | https://www.mdpi.com/2076-3417/10/20/7384 |
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