Experimental demonstration of higher-order Laguerre-Gauss mode interferometry
Experimental demonstration of higher-order Laguerre-Gauss mode interferometry
The compatibility of higher-order Laguerre-Gauss (LG) modes with interferometric technologies commonly used in gravitational wave detectors is investigated. In this paper, we present the first experimental results concerning the performance of the ${\mathrm{LG}}_{33}$ mode in optical resonators. We show that the Pound-Drever-Hall error signal for a ${\mathrm{LG}}_{33}$ mode in a …