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2022 IEEE International Topical Meeting on Microwave Photonics (MWP)最新文献

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Stable Fabry-Perot Optical Frequency Comb Generation Using Differential Phase Detection 利用差分相位检测产生稳定的法布里-珀罗光频梳
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997803
Xiyi Weng, Wei Wei, Weilin Xie, Yi Dong
We present a stable optical frequency comb (OFC) with a Fabry-Perot (F-P) phase modulator. By measuring the phase variation difference of upper and lower sidebands of the OFC signal, the state variation of the OFC is first precisely detected and then compensated by controlling its bias voltage through a homodyne phase-locked loop. Thanks to the precise differential phase detection, the bias drift induced by the fiber delay variation has been fully eliminated as common-mode noise, and the OFC can remain long-term stable without any additional reference signal. The deviation of the phase difference is merely 0.056 degrees over 3800 s. Moreover, the experiment shows that the OFC can still keep stable under a drastic temperature change, further validating the performance of the proposed stabilization method.
我们提出了一个稳定的光纤频率梳(OFC)与法布里-珀罗(F-P)相位调制器。通过测量OFC信号上下带的相位变化差,首先精确检测OFC的状态变化,然后通过一个纯差锁相环控制OFC的偏置电压进行补偿。由于精确的差分相位检测,光纤延迟变化引起的偏置漂移作为共模噪声被完全消除,OFC可以在没有任何额外参考信号的情况下保持长期稳定。相位差的偏差在3800秒内仅为0.056度。此外,实验表明,在剧烈的温度变化下,OFC仍能保持稳定,进一步验证了所提出的稳定方法的性能。
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引用次数: 0
Dispersion Induced-Power Fading tuned by Power-over-Fiber on 5G NR Analog Radio over Fiber Fronthaul optical links 光纤前传光纤链路上5G NR模拟无线电的光纤供电调谐色散诱导功率衰落
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997623
J. D. López-Cardona, R. Altuna, D. Montero, C. Vázquez
We present experimental results of Power-over-Fiber (PoF) impact on 5G New Radio Analog Radio over fiber transmission. Different ARoF links are implemented with approximate lengths of 6km, 10km, 14km, and 25 km, using QPSK modulations, with a bandwidth of 5MHz and with RF carriers within the range from 10 GHz to 20 GHz. The high power laser (HPL) output is set up to +33 dBm. In the experiment, the power fading, and the critical frequency shift as a consequence of the power injected by the HPL are analyzed. A maximum shift of 250 MHz was experimentally obtained at a length of 25.2 km for a HPL optical power of 33 dBm.
我们介绍了光纤供电(PoF)对5G光纤传输新无线电模拟无线电影响的实验结果。不同的ARoF链路的大约长度为6公里、10公里、14公里和25公里,使用QPSK调制,带宽为5MHz,射频载波范围为10 GHz至20 GHz。高功率激光(HPL)输出设置为+33 dBm。在实验中,分析了HPL注入功率导致的功率衰落和临界频移。实验结果表明,当HPL光功率为33 dBm时,在25.2 km的长度处,最大位移为250 MHz。
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引用次数: 0
Towards Tbit/s THz communications 走向thbit /s太赫兹通信
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997701
G. Ducournau, D. Gaillot, Aritrio Bandyopadhyay, M. Zegaoui, M. Zaknoune, B. Sawadogo, P. Szriftgiser, K. Baudelle, M. Bouet, G. Bouwmans, E. Andresen, L. Bigot
This work is reporting the concept of photomixer arrays for multiple 100 Gbit/s THz communications, as a technology enabler towards Tbit/s transmitters. Initial 4-UTC-PD array is shown and characterization of a single UTC-PD used as 100 Gbit/s data source.
这项工作报告了用于多个100 Gbit/s太赫兹通信的photomixer阵列的概念,作为Tbit/s发射机的技术推动者。显示了初始的4-UTC-PD阵列,并描述了用作100 Gbit/s数据源的单个UTC-PD的特性。
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引用次数: 0
Proposal and FPGA implementation of DBSCAN clustering nonlinear detector for MMW RoF system 毫米波RoF系统中DBSCAN聚类非线性检测器的提出与FPGA实现
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997800
Wu Xu, Peixuan Li, X. Zou, Ningyuan Zhong, W. Pan, Lian-shan Yan
We here propose and experimentally validate an improved density-based spatial of applications with noise clustering approach for mitigating the nonlinear distortions of analog millimeter-wave (MMW) radio over fiber (RoF) systems, to offer a self-adaptivity to various modulation formats as no training process and initialization parameters (e.g., signal constellation size) are required. In addition, fueled by the Manhattan distance clustering criteria, the FPGA implementation of such a machine-learning algorithm is achieved for verifying its practical feasibility. Validated by experiments, our proposal can effectively improve the nonlinearity tolerance of a 60-GHz MMW-RoF system transmitting single-carrier 64-QAM, 128-QAM and 256-QAM signals. Specifically, it helps to obtain a 1.25-dB improvement in the receiving sensitivity for the 64-QAM transmission in a fiber-wireless MMW channel consisting of 5-km fiber and 1-m wireless links.
我们在此提出并实验验证了一种改进的基于密度的空间应用噪声聚类方法,以减轻模拟毫米波(MMW)无线光纤(RoF)系统的非线性失真,提供对各种调制格式的自适应,因为不需要训练过程和初始化参数(例如,信号星座大小)。此外,在曼哈顿距离聚类标准的推动下,实现了这种机器学习算法的FPGA实现,验证了其实际可行性。实验结果表明,该方案能够有效提高60 ghz毫米波rof系统传输64-QAM、128-QAM和256-QAM单载波信号的非线性容错能力。具体来说,它有助于在由5公里光纤和1米无线链路组成的光纤-无线毫米波信道中获得64-QAM传输的接收灵敏度提高1.25 db。
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引用次数: 0
Electro-Opto-Mechanical Microwave-Frequency Oscillator in a Surface Acoustic Wave Silicon-Photonic Circuit 表面声波硅光子电路中的电光机械微波频率振荡器
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997729
M. Priel, S. Bag, Matan Slook, Leroy Dokhanian, I. Shafir, Etai Grunwald, M. Katzman, Mirit Hen, A. Zadok
An electro-opto-mechanical microwave frequency oscillator is demonstrated through a silicon photonic circuit. An electrical signal modulates an optical pump wave input. Modulation is converted to a surface acoustic wave on the silicon circuit through absorption in a metallic grating and thermoelastic expansion. The acoustic wave is delayed and converted back to optics through photoelastic modulation of a continuous optical input probe wave in a racetrack resonator waveguide. The output probe is detected, and the obtained voltage is amplified and fed back to modulate the input optical pump wave. With sufficient feedback gain, the electro-opto-mechanical loop is driven to oscillations at 2.21 GHz frequency. The oscillator can be useful for integrated microwave photonics signal processing.
通过硅光子电路演示了一种电光机械微波频率振荡器。电信号调制光泵浦波输入。调制通过金属光栅的吸收和热弹性膨胀在硅电路上转换为表面声波。通过在跑道谐振器波导中对连续光输入探测波进行光弹性调制,将声波延迟并转换回光学。对输出探头进行检测,将得到的电压放大并反馈,以调制输入光泵浦波。在有足够反馈增益的情况下,光电机械环被驱动到2.21 GHz频率的振荡。该振荡器可用于集成微波光子学信号的处理。
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引用次数: 0
A Silicon Photonics Automatically-Tunable mm-wave Remote Antenna Unit 一种硅光子学自动调谐毫米波远程天线装置
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997602
Ramy Rady, C. Madsen, S. Palermo, Karman Entesari
This article presents a 25–40 GHz novel silicon photonics wideband re-configurable mm-wave remote antenna unit (RAU) for radio over fiber (ROF) distributed antenna systems. The proposed chip-scale RAU architecture achieves energy efficiency by directly operating at mm-wave frequencies, and a small form factor by utilizing SOI photonics process. A 4-channel system is demonstrated each with a 3-dB BW of 5-GHz. The RAU downlink photonic integrated circuit (PIC) consists of a tunable channel-select filter, and a mm-wave high-speed photodetector (PD), while the uplink PIC comprises of cascaded image-and jammer-reject filters, respectively. Moreover, the calibration algorithm for photonics process variation and further tuning of the RAU operating bands is discussed here. To the best of the authors’ knowledge, this is the first wideband tunable mm-wave RAU that covers the mm-wave sub-40-GHz.
本文提出了一种用于光纤无线电(ROF)分布式天线系统的25-40 GHz新型硅光子宽带可重构毫米波远程天线单元(RAU)。所提出的芯片级RAU架构通过直接在毫米波频率下工作来实现能源效率,并通过利用SOI光子学工艺实现小尺寸。演示了一个4通道系统,每个系统具有5ghz的3db BW。RAU下行光子集成电路(PIC)由一个可调谐通道选择滤波器和一个毫米波高速光电探测器(PD)组成,上行光子集成电路(PIC)分别由级联图像和干扰抑制滤波器组成。此外,本文还讨论了光子过程变化的校正算法和RAU工作波段的进一步调谐。据作者所知,这是第一个覆盖40 ghz以下毫米波的宽带可调谐毫米波RAU。
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引用次数: 0
Compact OWC Receiver Enabled by Co-integration of Micro-Lens and PD Arrays on Glass Interposer 微透镜与PD阵列在玻璃中间体上的协整实现的紧凑型OWC接收机
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997772
Yuchen Song, Chenhui Li, K. Mekonnen, Mikolaj Wolny, C. Corrêa, M. Spiegelberg, E. Tangdiongga, O. Raz
We present a compact optical wireless receiver based on micro-lens and photodiodes array flip-chipped on a glass interposer. The performance of the receiver is verified with a simulation model and with an optical wireless link experimentally, which concludes that co-integration of micro-lens on the PD array can enhance by 3.5 dB the light collection efficiency of the photodiode array while keeping a field of view of 18 degrees (half angle). And 5.5 Gbps maximum throughput is verified with this receiver, using the discrete multitone transmission.
我们提出了一种基于微透镜和光电二极管阵列倒装在玻璃中间层上的紧凑型光学无线接收器。通过仿真模型和光学无线链路实验验证了接收机的性能,结果表明,在保持18度半角视场的情况下,微透镜在PD阵列上的协整可使光电二极管阵列的光收集效率提高3.5 dB。使用离散多音传输,验证了5.5 Gbps的最大吞吐量。
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引用次数: 0
Heterogeneous integration of ultra-narrow linewidth lasers on silicon for microwave photonics 微波光子学用超窄线宽激光器在硅上的非均匀集成
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997691
J. Bowers, C. Xiang, M. Tran, Joel Guo, W. Jin
Heterogeneous integration provides the capability of integrating III-V gain material with ultra-low-loss silicon photonic circuits on a monolithic silicon substrate. This integration results in the dramatic reduction of optical loss of the laser cavity and thus extends the photon lifetime and narrows the linewidth of semiconductor lasers beyond what is achieved with monolithic III-V integration. Recent progress includes widely-tunable III-V/silicon lasers with ultra-wide tuning range and lasers on silicon nitride with narrow linewidth that is comparable with fiber lasers. These lasers will play a critical role in ultra low noise microwave photonics.
异质集成提供了在单片硅衬底上集成III-V增益材料和超低损耗硅光子电路的能力。这种集成大大降低了激光腔的光损耗,从而延长了光子寿命,缩小了半导体激光器的线宽,超出了单片III-V集成所实现的。最近的进展包括具有超宽调谐范围的宽调谐III-V/硅激光器和具有与光纤激光器相当的窄线宽的氮化硅激光器。这些激光器将在超低噪声微波光子学中发挥关键作用。
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引用次数: 0
Mach-Zehnder Electro-optic Modulator with Multimode Interference Couplers of LiNbO3 Waveguides for Single Sideband Modulation 具有多模干涉耦合器的LiNbO3波导的Mach-Zehnder电光调制器用于单边带调制
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997678
Shotaro Yasumori, Anna Hirai, Takanori Sato, K. Morimoto, T. Kawai, A. Enokihara, S. Nakajima, A. Kanno
We designed and evaluated 1×2 and 2×2 optical couplers using multimode interference (MMI) optical waveguides of Ti-diffused LiNbO3. A Mach-Zehnder electrooptic modulator (MZM) designed using those two MMI couplers as an optical power splitter and combiner was fabricated. Optical intensity modulation was achieved with a 50 dB extinction ratio. And the experimental results showed that the 2 ×2 MMI optical coupler could provide nearly equal power division with a 90° phase difference as a 90° hybrid. Next, we applied the MZM structure to the single sideband (SSB) modulation. 10 GHz microwave signals of 90° phase difference were fed to the modulation electrodes on the two arms of the MZM. The SSB modulation operation was confirmed from output light spectra, and the sideband suppression ratio of 39 dB was observed by miner adjustment of the optical phase bias.
利用ti扩散LiNbO3的多模干涉光波导设计并评价了1×2和2×2光耦合器。利用这两个MMI耦合器作为光功率分配器和合成器,设计了马赫-曾德尔电光调制器(MZM)。光强调制以50 dB的消光比实现。实验结果表明,2 ×2 MMI光耦合器可以在90°相位差的情况下提供几乎相等的功率分配。接下来,我们将MZM结构应用于单边带(SSB)调制。将相位差为90°的10 GHz微波信号馈送到MZM两臂的调制电极上。从输出光谱中确定了SSB调制操作,并通过光相位偏置的矿工调整观察到边带抑制比为39 dB。
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引用次数: 0
Design and Analysis of Low Bias, Low Phase Noise Photodetectors for Frequency Comb Applications Using Particle Swarm Optimization 基于粒子群优化的频率梳低偏置、低相位噪声光电探测器设计与分析
Pub Date : 2022-10-01 DOI: 10.1109/MWP54208.2022.9997757
Ishraq Md Anjum, Ergun Simsek, S. E. J. Mahabadi, T. Carruthers, C. Menyuk
We use particle swarm optimization to optimize the design of a low-bias (5 V) modified uni-traveling carrier photodetector for low-phase-noise frequency comb applications. We analyze the best design generated by the algorithm to determine the physics that leads to a phase noise reduction. We find that the phase noise can be reduced by increasing the electric field in the photon absorption region and by adjusting the doping levels and thicknesses of the layers in the intrinsic region to optimize the electric field.
我们利用粒子群算法优化设计了一种低偏置(5 V)改进的单行载流子光电探测器,用于低相位噪声频率梳应用。我们分析了算法生成的最佳设计,以确定导致相位噪声降低的物理特性。我们发现通过增加光子吸收区电场和调整本征区掺杂水平和层厚度来优化电场可以降低相位噪声。
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引用次数: 1
期刊
2022 IEEE International Topical Meeting on Microwave Photonics (MWP)
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