Two-mode threshold of a solid-state Fabry-Perot laser

摘要

We analyse the two longitudinal mode threshold of a solid-state Fabry-Perot laser with a spatially nonuniform pump for two configurations: an end-pumped laser and a laser with a partially filled cavity. The threshold is derived in a consistent way. We prove that inhomogeneous pumping or partial filling of the cavity hardly modify the two-mode threshold.