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在透明度制度下运行的石墨烯相调节器

Hannah F Y Watson¹, Alfonso Ruocco¹, Matteo Tiberi¹

¹Cambridge Graphene Centre, University of Cambridge, 9 JJ Thomson Avenue, Cambridge CB3 0FA, U.K.

|October 22, 2024

概括

研究人员开发了一种新的石墨烯马赫-泽恩德调制器,用于更快的数据网络. 该设备实现纯相调节,具有显著降低的驱动电压和更小的尺寸,从而实现更高效,更紧的光通信系统.

科学领域:

光子学和光学通信技术
材料科学材料科学材料科学
电气工程电气工程

背景情况:

下一代数据网络需要每秒特拉比特 (Tb/s) 的数据速率,需要光学调制技术的进步.
在相位和方位 (IQ) 调制提高了数据密度和噪声耐受性,但需要纯相位调制以最大限度地减少符号间干扰.
当前的 (Si) 和酸 (LiNbO3) 调制器难以满足高效IQ调制所需的低驱动电压 (<1V) 和紧尺寸 (<1厘米),VπL产品通常超过1Vcm.

研究的目的:

开发一种新的马赫-泽恩德调制器 (MZM),能够在减少驱动电压和足迹的情况下进行纯相调制.
调查双单层石墨烯 (SLG) MZM在低损耗光学调制透明度制度中的性能.
展示一个符合下一代IQ调制器严格要求的调制器,特别是VπL<1Vcm.

主要方法:

制造一个双单层石墨烯 (SLG) 马赫-泽恩德调制器 (MZM).
在光学透明度制度下,MZM的相调节性能的表征.
测量关键性能指标,包括VπL,光学插入损失和驱动电压.

主要成果:

开发的SLG MZM实现了纯相调制,其VπL产值约为0.3Vcm.
该设备的插入损失很低 (∼5dB),并且在电压增加时保持恒定的光学损失.
VπL产品比最好的薄膜LiNbO3 MZMs低约5倍,比最好的Si MZMs低3倍.

结论:

双SLG MZM提供了一个有希望的解决方案,以显著降低VπL实现纯相调节,满足<1Vcm的要求.
这项技术使紧,低功耗的IQ调制器与补充性金属氧化物半导体 (CMOS) 制造相容.
该设备在驱动电压和足迹方面的性能改进为增强电路密度和光学网络功耗降低数量顺序铺平了道路.

关键词:

石墨烯是一种石墨烯.层层的材料. 层层的材料.模块化器是一个模块化器.光电子产品是光电子产品.光子学是指光子学中的一个方面.

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