美国斯坦福大学的研究人员利用CMOS相容材料和工艺开发了一种片上光频隔离器,预计该器件将大幅降低未来光学芯片的成本。光频隔离器只允许光线单方向传播,这在光纤通信网络中是至关重要的。它能防止不同元件间的相互干扰,克服由此产生的复杂寄生响应。当将光网络集成在芯片上时,合适的隔离机制将更加重要。 Researchers at Stanford University in the US developed an on-chip optical isolator using CMOS-compatible materials and processes that are expected to dramatically reduce the cost of future optical chips. Optical isolators only allow light to propagate unidirectionally, which is crucial in optical fiber communication networks. It prevents interference between different components and overcomes the resulting complex parasitic response. When the optical network is integrated on the chip, the appropriate isolation mechanism will be more important.