Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication
A photomixing-based frequency-hopping spread spectrum (FHSS) system is effective for future secure terahertz (THz) wireless communications. Conventional photomixing systems are typically composed of two lasers, which result in an increased system size and power consumption. To address this issue, we...
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MDPI AG
2025-01-01
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| Series: | Photonics |
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| Online Access: | https://www.mdpi.com/2304-6732/12/1/76 |
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| author | Naoto Masutomi Shenghong Ye Bo Li Ryota Kaide Ming Che Yuya Mikami Yuta Ueda Kazutoshi Kato |
| author_facet | Naoto Masutomi Shenghong Ye Bo Li Ryota Kaide Ming Che Yuya Mikami Yuta Ueda Kazutoshi Kato |
| author_sort | Naoto Masutomi |
| collection | DOAJ |
| description | A photomixing-based frequency-hopping spread spectrum (FHSS) system is effective for future secure terahertz (THz) wireless communications. Conventional photomixing systems are typically composed of two lasers, which result in an increased system size and power consumption. To address this issue, we applied our proposed THz wave generation method, using a single wavelength-tunable laser, to the FHSS system. In the experiments, we successfully demonstrated a J-band (220–330 GHz) FHSS system with a frequency-hopped interval of 400 ns. |
| format | Article |
| id | doaj-art-cd4cdaf1a566457f865cd52c27df49e4 |
| institution | Kabale University |
| issn | 2304-6732 |
| language | English |
| publishDate | 2025-01-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Photonics |
| spelling | doaj-art-cd4cdaf1a566457f865cd52c27df49e42025-01-24T13:46:26ZengMDPI AGPhotonics2304-67322025-01-011217610.3390/photonics12010076Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz CommunicationNaoto Masutomi0Shenghong Ye1Bo Li2Ryota Kaide3Ming Che4Yuya Mikami5Yuta Ueda6Kazutoshi Kato7Graduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanNTT Device Technology Laboratories, NTT Corporation, Atsugi 243-0198, JapanGraduate School of Information Science and Electrical Engineering, Kyushu University, Fukuoka 819-0395, JapanA photomixing-based frequency-hopping spread spectrum (FHSS) system is effective for future secure terahertz (THz) wireless communications. Conventional photomixing systems are typically composed of two lasers, which result in an increased system size and power consumption. To address this issue, we applied our proposed THz wave generation method, using a single wavelength-tunable laser, to the FHSS system. In the experiments, we successfully demonstrated a J-band (220–330 GHz) FHSS system with a frequency-hopped interval of 400 ns.https://www.mdpi.com/2304-6732/12/1/76terahertz wavewavelength-tunable laserphotomixingfrequency-hopping spread spectrum |
| spellingShingle | Naoto Masutomi Shenghong Ye Bo Li Ryota Kaide Ming Che Yuya Mikami Yuta Ueda Kazutoshi Kato Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication Photonics terahertz wave wavelength-tunable laser photomixing frequency-hopping spread spectrum |
| title | Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication |
| title_full | Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication |
| title_fullStr | Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication |
| title_full_unstemmed | Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication |
| title_short | Cost-Effective and Energy-Efficient Photonics-Based Frequency Hopping by Single Wavelength-Tunable Laser for Secure THz Communication |
| title_sort | cost effective and energy efficient photonics based frequency hopping by single wavelength tunable laser for secure thz communication |
| topic | terahertz wave wavelength-tunable laser photomixing frequency-hopping spread spectrum |
| url | https://www.mdpi.com/2304-6732/12/1/76 |
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