Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link
We demonstrate the transmission of uncompressed 4K videos over the photonics-based terahertz (THz) wireless link using a directly modulated distributed feedback laser diode (DFB-LD). For optical heterodyne mixing and data modulation, a DFB-LD was employed and directly modulated with a 5.94-Gb/s non-...
| Main Authors: | , , , , |
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| Format: | Article |
| Language: | English |
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Electronics and Telecommunications Research Institute (ETRI)
2023-04-01
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| Series: | ETRI Journal |
| Subjects: | |
| Online Access: | https://doi.org/10.4218/etrij.2021-0329 |
| _version_ | 1797839057886117888 |
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| author | Eon-Sang Kim Sang-Rok Moon Minkyu Sung Joon Ki Lee Seung-Hyun Cho |
| author_facet | Eon-Sang Kim Sang-Rok Moon Minkyu Sung Joon Ki Lee Seung-Hyun Cho |
| author_sort | Eon-Sang Kim |
| collection | DOAJ |
| description | We demonstrate the transmission of uncompressed 4K videos over the photonics-based terahertz (THz) wireless link using a directly modulated distributed feedback laser diode (DFB-LD). For optical heterodyne mixing and data modulation, a DFB-LD was employed and directly modulated with a 5.94-Gb/s non-return-to-zero signal, which is related to a 6G-serial digital interface standard to support ultra-high-definition video resolution. We derived the optimal frequency of the THz carrier by varying the wavelength difference between DFB-LD output and Tunable LD output in the THz signal transmitter to obtain the best transmission performances of the uncompressed 4K video signals. Furthermore, we exploited the negative laser-to-filter detuning for the adiabatic chirp management of the DFB-LD by the intentional discrepancy between the center wavelength of the optical band-pass filter and the output wavelength of the DFB-LD. With the help of the abovementioned methods, we successfully transmitted uncompressed 4K video signals over the 2.3-m wireless transmission distance without black frames induced by time synchronization error. |
| first_indexed | 2024-04-09T15:52:05Z |
| format | Article |
| id | doaj.art-7d1354a46e27435fb02c1555bf05e9d5 |
| institution | Directory Open Access Journal |
| issn | 1225-6463 |
| language | English |
| last_indexed | 2024-04-09T15:52:05Z |
| publishDate | 2023-04-01 |
| publisher | Electronics and Telecommunications Research Institute (ETRI) |
| record_format | Article |
| series | ETRI Journal |
| spelling | doaj.art-7d1354a46e27435fb02c1555bf05e9d52023-04-26T06:13:27ZengElectronics and Telecommunications Research Institute (ETRI)ETRI Journal1225-64632023-04-0145219320210.4218/etrij.2021-032910.4218/etrij.2021-0329Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless linkEon-Sang KimSang-Rok MoonMinkyu SungJoon Ki LeeSeung-Hyun ChoWe demonstrate the transmission of uncompressed 4K videos over the photonics-based terahertz (THz) wireless link using a directly modulated distributed feedback laser diode (DFB-LD). For optical heterodyne mixing and data modulation, a DFB-LD was employed and directly modulated with a 5.94-Gb/s non-return-to-zero signal, which is related to a 6G-serial digital interface standard to support ultra-high-definition video resolution. We derived the optimal frequency of the THz carrier by varying the wavelength difference between DFB-LD output and Tunable LD output in the THz signal transmitter to obtain the best transmission performances of the uncompressed 4K video signals. Furthermore, we exploited the negative laser-to-filter detuning for the adiabatic chirp management of the DFB-LD by the intentional discrepancy between the center wavelength of the optical band-pass filter and the output wavelength of the DFB-LD. With the help of the abovementioned methods, we successfully transmitted uncompressed 4K video signals over the 2.3-m wireless transmission distance without black frames induced by time synchronization error.https://doi.org/10.4218/etrij.2021-03294k video transmissiondirectly modulated laserlaser-to-filter detuning effectoptical communicationterahertz communication |
| spellingShingle | Eon-Sang Kim Sang-Rok Moon Minkyu Sung Joon Ki Lee Seung-Hyun Cho Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link ETRI Journal 4k video transmission directly modulated laser laser-to-filter detuning effect optical communication terahertz communication |
| title | Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link |
| title_full | Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link |
| title_fullStr | Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link |
| title_full_unstemmed | Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link |
| title_short | Experimental demonstration of uncompressed 4K video transmission over directly modulated distributed feedback laser-based terahertz wireless link |
| title_sort | experimental demonstration of uncompressed 4k video transmission over directly modulated distributed feedback laser based terahertz wireless link |
| topic | 4k video transmission directly modulated laser laser-to-filter detuning effect optical communication terahertz communication |
| url | https://doi.org/10.4218/etrij.2021-0329 |
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