Xie Yiwei, Wu Jiachen, Hong Shihan, Wang Cong, Liu Shujun, Li Huan, Ju Xinyan, Ke Xiyuan, Liu Dajian, Dai Daoxin
State Key Laboratory for Modern Optical Instrumentation, Center for Optical & Electromagnetic Research, College of Optical Science and Engineering, International Research Center for Advanced Photonics, Zhejiang University, Hangzhou 310058, China.
Advance Laser Technology Laboratory of Anhui Province, Hefei 230037, China.
Nanophotonics. 2024 Feb 19;13(12):2051-2073. doi: 10.1515/nanoph-2023-0836. eCollection 2024 May.
Optical signal processing has been playing a crucial part as powerful engine for various information systems in the practical applications. In particular, achieving large-scale programmable chips for signal processing are highly desirable for high flexibility, low cost and powerful processing. Silicon photonics, which has been developed successfully in the past decade, provides a promising option due to its unique advantages. Here, recent progress of large-scale programmable silicon photonic chip for signal processing in microwave photonics, optical communications, optical computing, quantum photonics as well as dispersion controlling are reviewed. Particularly, we give a discussion about the realization of high-performance building-blocks, including ultra-low-loss silicon photonic waveguides, 2 × 2 Mach-Zehnder switches and microring resonator switches. The methods for configuring large-scale programmable silicon photonic chips are also discussed. The representative examples are summarized for the applications of beam steering, optical switching, optical computing, quantum photonic processing as well as optical dispersion controlling. Finally, we give an outlook for the challenges of further developing large-scale programmable silicon photonic chips.
在实际应用中，光信号处理作为各种信息系统的强大引擎发挥着至关重要的作用。特别是，实现用于信号处理的大规模可编程芯片对于高灵活性、低成本和强大的处理能力而言是非常可取的。在过去十年中成功发展起来的硅光子学，因其独特优势提供了一个很有前景的选择。在此，回顾了用于微波光子学、光通信、光计算、量子光子学以及色散控制中信号处理的大规模可编程硅光子芯片的最新进展。特别地，我们讨论了高性能构建模块的实现，包括超低损耗硅光子波导、2×2马赫-曾德尔开关和微环谐振器开关。还讨论了配置大规模可编程硅光子芯片的方法。总结了用于光束转向、光开关、光计算、量子光子处理以及光色散控制应用的代表性实例。最后，我们对进一步开发大规模可编程硅光子芯片所面临的挑战进行了展望。
