Photonic frequency converter for spectrally agile seamless access network in millimeter-wave band

用于毫米波频段频谱敏捷无缝接入网络的光子频率转换器

• 批准号: 22K04116
• 负责人: PHAM TIENDAT
• 金额: $ 2.66万
• 依托单位: National Institute of Information and Communications Technology
• 依托单位国家: 日本
• 项目类别: Grant-in-Aid for Scientific Research (C)
• 财政年份: 2022
• 资助国家: 日本
• 起止时间: 2022-04-01 至 2025-03-31
• 项目状态: 未结题
• 来源: https://kaken.nii.ac.jp/grant/KAKENHI-PROJECT-22K04116/
• 关键词: radio over fiber; photonic down-conversion; fiber radio; optical communications; mobile fronthaul

We studied photonic downconversion technology using single and dual wavelength modulation by a newly fabricated optical phase modulator. We compared the system characteristics and transmitted high-order quadrature amplitude modulation (QAM) orthogonal frequency-division multiplexing (OFDM) signals in the 43 and 52 GHz bands over the system. We also demonstrated the first radio-fiber-radio-fiber system for transparent delivery of 100-GHz radio signals in the uplink direction using photonic down-conversion. We successfully transmitted 16-QAM single-carrier and OFDM signals with line rates of 30 and 40 Gb/s over the system in the 100-GHz band. We proposed and developed a low-loss and high-bandwidth lithium niobate modulator integrated with an electro-optic frequency-domain equalizer. The fabricated Ti-diffused lithium niobate modulator has a low optical loss of 5.4 dB, low half-wave voltage of 3.7 V, and high bandwidth exceeding 110 GHz.

研究了利用新型光相位调制器进行单波长和双波长调制的光子下变频技术。我们比较了系统特性，并在43和52 GHz频段的系统中传输高阶正交幅度调制（QAM）正交频分复用（OFDM）信号。我们还展示了第一个无线电-光纤-无线电-光纤系统，用于使用光子下变频在上行链路方向上透明传输100 GHz无线电信号。我们成功地传输了16-QAM单载波和OFDM信号，线速率为30和40 Gb/s的系统在100 GHz频段。提出并研制了一种集成电光频域均衡器的低损耗、高带宽锂离子光调制器。所制备的钛扩散钛酸锂调制器具有5.4dB的低光损耗、3.7V的低半波电压和超过110 GHz的高带宽。

项目成果

Transparent Radio-Fiber-Radio-Fiber System in 100-GHz Band for Indoor Uplink Signal Transmission in Beyond 5G

100 GHz 频段透明无线电-光纤-无线电-光纤系统，用于超 5G 室内上行链路信号传输

• 发表时间: 2023
• 作者: N. Ito;Y. Sanada;Pham Tien Dat et al.,;Pham Tien Dat et al.,;Pham Tien Dat et al.,
• 通讯作者: Pham Tien Dat et al.,

Photonic frequency conversion technology for 5G advanced signal transmission

用于5G先进信号传输的光子频率转换技术

• 发表时间: 2022
• 作者: Pham Tien Dat;Atsushi Kanno
• 通讯作者: Atsushi Kanno

Transparent Relay and Switching of THz-wave Signals in 285-GHz Band Using Photonic Technology

使用光子技术实现 285 GHz 频段太赫兹波信号的透明中继和切换

• 发表时间: 2023
• 作者: N. Ito;Y. Sanada;Pham Tien Dat et al.,;Pham Tien Dat et al.,;Pham Tien Dat et al.,;Pham Tien Dat et al.,
• 通讯作者: Pham Tien Dat et al.,

Transmission of Millimeter-wave Radio Signal over a Seamless Fiber–Terahertz System at 325 GHz

325 GHz 无缝光纤太赫兹系统上的毫米波无线电信号传输

• DOI: 10.1109/mwp54208.2022.9997637
• 发表时间: 2022
• 期刊: 2022 IEEE International Topical Meeting on Microwave Photonics (MWP)
• 作者: P. Dat;K. Inagaki;I. Morohashi;N. Sekine;A. Kanno
• 通讯作者: A. Kanno

Low-Loss Ti-diffused LiNbO3 Modulator Integrated with Electro-Optic Frequency-Domain Equalizer for High Bandwidth Exceeding 110 GHz

集成电光频域均衡器的低损耗 Ti 扩散 LiNbO3 调制器，可实现超过 110 GHz 的高带宽

• 发表时间: 2022
• 作者: Yuya Yamaguchi;Pham Tien Dat et al.,
• 通讯作者: Pham Tien Dat et al.,