Electronic-Photonic Co-Design of Co-Packaged Optics in Schematic-Driven Layout Design Flow for Photonic Integrated Circuits

J. Patel, E. Ghillino, P. Mena, D. Richards, T. Korthorst
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Abstract

The transition from pluggable optics to co-packaged optics is having an impact on the photonic integrated circuit design automation. Traditionally, chip designers for fiber-optic systems using electronic design automation tools frequently needed a way to model a few photonic components in the same design environment with the electronics. Examples include modeling lasers or modulators with electrical driver circuits, or modeling receiver electronics with photodetector. These designs focused primarily on optimizing electronics and it was typically sufficient to model a few photonic components through electrically equivalent circuit representations using SPICE or Verilog-A. However, with the advances in silicon photonics, the photonic component count in modern PICs is rapidly growing raising serious concerns over efficacy and reliability of treating photonics as electronics. This paper describes an E-O co-design approach that (i) does not require user intervention on RF and photonic domain demarcations, and (ii) supports schematic-driven layout and back-annotation.
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光子集成电路原理图驱动布局设计流程中共封装光学器件的电子-光子协同设计
从可插拔光学到共封装光学的转变对光子集成电路设计自动化产生了影响。传统上,使用电子设计自动化工具的光纤系统芯片设计人员经常需要一种在与电子元件相同的设计环境中对几个光子元件进行建模的方法。示例包括用电气驱动电路建模激光器或调制器,或用光电探测器建模接收器电子器件。这些设计主要侧重于优化电子器件,通常足以通过使用SPICE或Verilog-A的等效电路表示来模拟一些光子元件。然而,随着硅光子学的进步,现代光子集成电路中的光子元件数量迅速增长,这引起了人们对将光子学视为电子学的有效性和可靠性的严重担忧。本文描述了一种E-O协同设计方法,该方法(i)不需要用户干预射频和光子域划分,并且(ii)支持原理图驱动的布局和反向注释。
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