Correction to: Light: Science & Application

https://doi.org/10.1038/s41377-018-0047-4 published online 8 August 2018

We would like to correct an incomplete sentence in the last paragraph on page 3.

“With a large number of modes in the fiber, we obtain.” should be corrected to

“With a large number of modes in the fiber, we obtain PER >> 1.”

We would like to apologize for any confusion this may have caused.