The article "Ultrafast fibre lasers" by Martin E. Fermann and Ingmar Hartl, published in *Nature Photonics* in 2013, discusses the advancements and applications of ultrafast fiber lasers. The review covers the key principles, technological developments, and potential future directions in this field. However, it was noted that the DOI for the original publication was incorrectly specified and has been corrected to 10.1038/nphoton.2013.280.The article "Ultrafast fibre lasers" by Martin E. Fermann and Ingmar Hartl, published in *Nature Photonics* in 2013, discusses the advancements and applications of ultrafast fiber lasers. The review covers the key principles, technological developments, and potential future directions in this field. However, it was noted that the DOI for the original publication was incorrectly specified and has been corrected to 10.1038/nphoton.2013.280.