Erratum: In Situ optical backpropagation training of diffractive optical neural networks (Photonics Research (2020) 8 (940-953) DOI: 10.1364/PRJ.389553)

The affiliations in Ref. [1] originally read as follows: Tiankuang Zhou,1,2,3,† Lu Fang,2,4,† Tao Yan,1,2 Jiamin Wu,1,2 Yipeng Li,1,2 Jingtao Fan,1,2 Huaqiang Wu,3,6 Xing Lin,1,3,4,7 and Qionghai Dai1,2,5,8 1Department of Automation, Tsinghua University, Beijing 100084, China 2Institute for Brain and Cognitive Science, Tsinghua University, Beijing 100084, China 3Tsinghua Shenzhen International Graduate School, Tsinghua University, Shenzhen 518055, China 4Beijing Innovation Center for Future Chip, Tsinghua University, Beijing 100084, China 5Beijing National Research Center for Information Science and Technology, Tsinghua University, Beijing 100084, China 6Institute of Microelectronics, Tsinghua University, Beijing 100084, China 7e-mail: [email protected] 8e-mail: [email protected] The affiliations of Lu Fang, Huaqiang Wu, Xing Lin, and Qionghai Dai are corrected, as shown at the beginning of this note. The article [1] was corrected online on 22 June 2020. †These authors contributed equally to the original article [1]. Reference: 1. T. Zhou, L. Fang, T. Yan, J. Wu, Y. Li, J. Fan, H. Wu, X. Lin, and Q. Dai, "In situ optical backpropagation training of diffractive optical neural networks,"Photon. Res. 8, 940-953 (2020).