We introduce a programmable eight-port interferometer with the recently proposed error-tolerant architecture capable of performing a broad class of transformations. The interferometer has been fabricated with femtosecond laser writing, and it is the largest programmable interferometer of this kind to date. We have demonstrated its advantageous error tolerance by showing an operation in a broad wavelength range from 920 to 980 nm, which is particularly relevant for quantum photonics due to efficient photon sources existing in this wavelength range. Our work highlights the importance of developing novel architectures of programmable photonics for information processing.

中文翻译：

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飞秒激光写入制造的大规模容错可编程干涉仪

我们推出了一种可编程八端口干涉仪，其具有最近提出的容错架构，能够执行广泛的转换。该干涉仪采用飞秒激光写入技术制造，是迄今为止同类中最大的可编程干涉仪。我们通过展示 920 至 980 nm 的宽波长范围内的操作，展示了其优越的容错能力，由于该波长范围内存在高效的光子源，这与量子光子学特别相关。我们的工作强调了开发用于信息处理的可编程光子学新颖架构的重要性。