Beam displacement tolerances on a segmented mirror for higher-order Hermite–Gauss modes
Beam displacement tolerances on a segmented mirror for higher-order Hermite–Gauss modes
Abstract Odd-indexed higher-order Hermite–Gauss (HG) modes are compatible with four-quadrant segmented mirrors due to their intensity nulls along the principal axes, which guarantees minimum beam intensity illuminating the bond lines between the segments thus leading to low power loss. However, a misplaced HG beam can cause extra power loss due …