A 36 × 240 Gbps hybrid mode/wavelength division multiplexing transmitter using lithium niobate on insulator
一种采用绝缘体上铌酸锂的36×240 Gbps混合模式/波分复用发射机
A 36 × 240 Gbps ハイブリッドモード/波長分割多重送信機、絶縁体上リチウムニオブート酸化物を使用
A 36 × 240 Gbps 하이브리드 모드/파장 분할 다중화 송신기, 리튬 나이오베이트 온 인서레이터 사용
Un transmisor híbrido de modo/división de frecuencia de onda de 36 × 240 Gbps utilizando niobato de litio sobre aislante
Un émetteur hybride mode/division en longueur d'onde de 36 × 240 Gbps utilisant niobate de lithium sur isolant
36 × 240 Гбит/с гибридный передатчик с режимом разделения по длине волны, использующий литиево-никельат на изоляторе
Mingyu Zhu 朱明愚 ¹, Weihan Wang 王维涵 ¹, Ruitao Ma 马睿韬 ¹, Aoyun Gao 高奥运 ¹, Chun Gao 高淳 ¹, Zexu Wang 王泽旭 ¹, Fei Huang 黄飞 ¹, Zhenyuan Bao 包正源 ¹, Dajian Liu 刘大建 ¹ ², Jiaxuan Gan 甘嘉轩 ¹, Zejie Yu 俞泽杰 ¹ ³, Huan Li 李欢 ¹ ³, Weike Zhao 赵伟科 ¹, Daoxin Dai 戴道锌 ¹ ³ ⁴
¹ State Key Laboratory of Extreme Photonics and Instrumentation, College of Optical Science and Engineering, Zhejiang University, Hangzhou 310058, China
中国 杭州 浙江大学光电科学与工程学院 极端光学技术与仪器全国重点实验室
² ZJU-Hangzhou Global Scientific and Technological Innovation Center, Zhejiang University, Hangzhou 311215, China
中国 杭州 浙江大学 浙江大学杭州国际科创中心
³ Jiaxing Key Laboratory of Photonic Sensing & Intelligent Imaging, Intelligent Optics & Photonics Research Center, Jiaxing Research Institute, Zhejiang University, Jiaxing 314000, China
中国 嘉兴 浙江大学嘉兴研究院 智能光电创新中心 嘉兴市光电感知与智能成像重点实验室
⁴ China Jiliang University, Hangzhou 310018, China
中国 杭州 中国计量学院
In the era of big data and artificial intelligence, the explosive growth of data capacity has driven unprecedented demands for high-capacity and high-speed optical communication systems. The traditional single-mode and single-wavelength transmission technologies can no longer meet the requirements of massive data transmission, thereby continuously driving the industry to explore more efficient multiplexing schemes.
Here, a hybrid 6-mode × 6-wavelength division multiplexing transmitter based on lithium niobate-on-insulator (LNOI) is proposed as a groundbreaking solution for next-generation optical communication. The transmitter innovatively combines six different waveguide modes (TE0–TE5 modes) with six wavelengths spaced 3.2 nm apart, enabling the dense multiplexing of 36 independent channels within a compact optical bandwidth and achieving a capacity of 36 × 240 Gbps. The 3.2 nm channel spacing (approximately 400 GHz at 1550 nm) complies with the ITU-T grid standards, ensuring compatibility with existing optical network infrastructures.
Meanwhile, the mode division multiplexing component utilizes multi-mode waveguides to fully leverage the spatial degrees of freedom in optical transmission, thereby significantly enhancing the spectral efficiency of the system compared to traditional single-mode solutions. This hybrid mode/wavelength division multiplexing architecture exhibits excellent applicability in next-generation data center interconnections and long-haul optical transmission networks.
