Comments and Replies

• Comments generally point out and correct significant errors or deficiencies in papers, clarify the implications of a paper, or question the conclusions reached.  (In many journals this is accomplished via Letters to the Editor instead.)
• They are sent to the author(s) of the originating article for a response, or Reply, to be published in the journal alongside the Comment if possible.
• Replies should add new information beyond that already published in the original article.
• All Optica Publishing Group journals offer authors the opportunity to submit Comments and Replies.