Demonstration of THz frequency hopping in the 300 GHz band based on UTC-PD and tunable DFB laser array

We explored the potential of an optoelectronic frequency hopping system within the 300 GHz band, leveraging a tunable distributed feedback laser array and uni-traveling carrier photodiode. Our experiments successfully achieved a 10-channel terahertz (THz) frequency hopping, marking a significant adv...

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Bibliographic Details
Published in:Japanese Journal of Applied Physics 2024-04, Vol.63 (4), p.4
Main Authors: Li, Bo, Ye, Shenghong, Che, Ming, Tang, Haolan, Masutomi, Naoto, Mikami, Yuya, Kato, Kazutoshi
Format: Article
Language:English
Subjects:
Bit error rate
Channels
Data transmission
Distributed feedback lasers
Frequency hopping
Laser arrays
Optoelectronics
Photodiodes
photomixing
secure communication
terahertz
Terahertz frequencies
Tunable lasers
tunable light sources
uni-traveling carrier photodiode
wireless
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Summary:We explored the potential of an optoelectronic frequency hopping system within the 300 GHz band, leveraging a tunable distributed feedback laser array and uni-traveling carrier photodiode. Our experiments successfully achieved a 10-channel terahertz (THz) frequency hopping, marking a significant advancement in THz secure communication technologies. Notably, the system exhibited a rapid frequency-hopping capability with a short transition time of 0.8 ms between channels, ranging from 288 to 331 GHz. Further, we conducted data transmission tests at a rate of 5 Gbit s −1 across several channels. The results were promising, showing each channel maintained a clear eye pattern and a low bit error rate, crucial factors for reliable and secure data transmission. These findings not only demonstrate the efficacy of our system but also open new avenues for high-speed, secure THz communication.
ISSN:0021-4922
1347-4065
DOI:10.35848/1347-4065/ad3926