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Integrated Silicon-on-Insulator Optical Comb Demultiplexer for Elastic Optical Networks
IEEE Photonics Technology Letters ( IF 2.3 ) Pub Date : 2020-07-15 , DOI: 10.1109/lpt.2020.3000727
Claudio Porzi , Alessandro Nottola , Stefano Tirelli , Giovan Battista Preve , Marc Sorel , Antonella Bogoni

Practical deployment of elastic optical networks requires key enabling technologies supporting the miniaturization of flexible optical transponders for provisioning large-bandwidth services at low-cost per users. A silicon photonics (SiP) reconfigurable optical frequency comb (OFC) demultiplexer based on passive optical filtering exhibiting a minimum spurious tone rejection (STR) of nearly 30dB at 12.5GHz tone spacing is here reported. Low power penalty due to inter-channel crosstalk (IXT) originated by finite STR is observed. Improved filter designs for reduced IXT and/or operation at 6.25GHz comb spacing are experimentally and numerically verified. By monolithic integration with SiP OFC sources and I-Q modulators the scheme has potentials for realizing ultra-compact multiple-flow optical transmitters with adaptive bandwidth and channel spacing.

中文翻译:

用于弹性光网络的集成绝缘体上硅光梳解复用器

弹性光网络的实际部署需要支持灵活光转发器小型化的关键使能技术,以便以每个用户的低成本提供大带宽服务。本文报道了一种基于无源光滤波的硅光子学 (SiP) 可重构光频梳 (OFC) 解复用器,该滤波器在 12.5GHz 音调间隔下表现出近 30dB 的最小杂散音抑制 (STR)。观察到由有限 STR 产生的通道间串扰 (IXT) 导致的低功率损失。改进的滤波器设计用于减少 IXT 和/或在 6.25GHz 梳齿间距下运行,经过实验和数值验证。通过与 SiP OFC 源和 IQ 调制器的单片集成,该方案具有实现具有自适应带宽和信道间隔的超紧凑多流光发射机的潜力。
更新日期:2020-07-15
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