This publisher’s note contains corrections to Opt. Lett. 46, 4797 (2021) [CrossRef] .
© 2021 Optica Publishing Group
In , an award number was misidentified in the funding section. The article was corrected online on 8 October 2021.
1. M. Pi, C. Zheng, H. Zhao, Z. Peng, J. Lang, J. Ji, L. Liang, Y. Zhang, Y. Wang, and F. K. Tittel, Opt. Lett. 46, 4797 (2021). [CrossRef]