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超宽带近至中红外电光调制器在薄膜基酸上
Qiyuan Li1, Qiyuan Yi1, Aolong Sun2
1Wuhan National Laboratory for Optoelectronics and School of Optical and Electronic Information, Huazhong University of Science and Technology, Wuhan, China.
Nature communications
|January 8, 2026
概括
研究人员开发了一种新的薄膜酸 (TFLN) 电光 (EO) 调制器. 该设备实现了800纳米的带宽,实现了跨电信和2μm频段的高速光学通信.
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
背景情况:
- 传统的近红外电信频段面临容量限制,推动研究更宽带宽的光学系统.
- 现有的调制器因波导分散和速度不匹配而难以获得广泛的操作带宽.
研究的目的:
- 为了展示一个薄膜尼酸盐 (TFLN) 电光 (EO) 调制器,具有前所未有的运行带宽.
- 为了实现O-U电信频段的高速光学通信,并进入2μm系统.
主要方法:
- 一个TFLN EO调制器的制造.
- 在O-U和2μm频段中对EO带宽的描述.
- 使用4级脉冲振幅调制 (PAM-4) 高速数据传输的演示.
主要成果:
- 实现了800nm的操作带宽,覆盖O-U电信频段,并延伸到2μm.
- 在O-U频段 (~100 GHz在O-/S-/C-/L频段) 中,EO带宽超过67GHz,在2μm范围内超过50GHz.
- 在O-U频段实现了超过240Gbps的单车道传输速率PAM-4,并在2μm时创下了创纪录的170Gbps的PAM-4.
结论:
- TFLN是多光谱光子学的可行平台,将当前的电信基础设施与新兴的2μm技术相结合.
- 展示的TFLN EO调制器为下一代光通信系统提供了一条途径,带有显著增强的带宽和速度.
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