Abstract
Longitudinal segmented helicoidal eigenstates in laser resonators, with different field distributions of either identical or opposite handedness, are studied theoretically and experimentally. The eigenmodes and frequencies are derived in the framework of the Jones-matrix formalism. Double helices can be applied to birefringence compensation for helicoidal waves. A novel Fabry–Perot laser cavity is realized in which both spatial hole-burning suppression and birefringence compensation are simultaneously achieved.
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