High-brightness scalable continuous-wave single-mode photonic-crystal laser.

ABSTRACT: Realizing large-scale single-mode, high-power, high-beam-quality semiconductor lasers, which rival (or even replace) bulky gas and solid-state lasers, is one of the ultimate goals of photonics and laser physics. Conventional high-power semiconductor lasers, however, inevitably suffer from poor beam quality owing to the onset of many-mode oscillation^1,2, and, moreover, the oscillation is destabilized by disruptive thermal effects under continuous-wave (CW) operation^3,4. Here, we surmount these challenges by developing large-scale photonic-crystal surface-emitting lasers with controlled Hermitian and non-Hermitian couplings inside the photonic crystal and a pre-installed spatial distribution of the lattice constant, which maintains these couplings even under CW conditio

SUBMITTER: Yoshida M 

PROVIDER: S-EPMC10284696 | biostudies-literature | 2023 Jun

REPOSITORIES: biostudies-literature