Increased sensitivity of higher-order laser beams to mode mismatches

A. W. Jones, A. Freise

Research output: Contribution to journalArticlepeer-review

6 Citations (Scopus)


This Letter derives explicit factors linking mode-mismatch-induced power losses in Hermite–Gauss optical modes to the losses of the fundamental spatial mode. Higher-order modes are found to be more sensitive to beam parameter mismatches. This is particularly relevant for gravitational-wave detectors, where lasers employing higher-order optical modes have been proposed to mitigate thermal noise, and quantum-enhanced detectors are very susceptible to losses. This work should inform mode matching and squeezing requirements for Advanced+ and third generation detectors.

Original languageEnglish
Pages (from-to)5876-5878
Number of pages3
JournalOptics Letters
Issue number20
Publication statusPublished - 15 Oct 2020


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