Abstract

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.

© 2020 Optical Society of America

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Supplementary Material (2)

NameDescription
» Code 1       Increased sensitivity to beam parameter mismatches calculator
» Supplement 1       Analytical computation of 1D mode coupling coefficient for waist position mismatch

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