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

Bo Li, Shenghong Ye, M. Che, Haolan Tang, Naoto Masutomi, Yuya Mikami, Kazutoshi Kato
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Abstract

We explored the potential of an optoelectronic frequency hopping system within the 300 GHz band, leveraging a tunable distributed feedback (DFB) laser array and uni-traveling carrier photodiode (UTC-PD). 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 GHz to 331 GHz. Further, we conducted data transmission tests at a rate of 5 Gbit/s 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.
基于 UTC-PD 和可调谐 DFB 激光阵列的 300 GHz 波段太赫兹跳频演示
我们利用可调谐分布式反馈(DFB)激光器阵列和单程载波光电二极管(UTC-PD),探索了 300 GHz 频段内光电跳频系统的潜力。我们的实验成功实现了 10 通道太赫兹(THz)跳频,标志着太赫兹安全通信技术的重大进步。值得注意的是,该系统具有快速跳频能力,信道之间的转换时间短至 0.8 毫秒,频率范围从 288 GHz 到 331 GHz。此外,我们还在多个信道上进行了速率为 5 Gbit/s 的数据传输测试。结果令人欣喜,显示每个信道都保持了清晰的眼图和较低的误码率,而这正是可靠和安全数据传输的关键因素。这些发现不仅证明了我们系统的功效,还为高速、安全的太赫兹通信开辟了新途径。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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