Anticorrelated bidirectional output of quasistadium-shaped semiconductor microlasers
Time-domain properties of the output from quasistadium-shaped microcavity semiconductor lasers are studied. Ring modes generating a bidirectional output are selectively excited by partial pumping. We observe a high anticorrelation between the two beams output from the ring modes. This can be considered as the generalization of alternate oscillations reported previously. We find that the outputs exhibit a robust slow modulation of 4–10 MHz, and explain it by the quasi-degeneracy of the resonator modes.
Abstract We derive semiclassical equations for a single-mode laser operating between a bound state and an autoionizing resonance. We study its steady state properties, find intensity-dependent frequency pulling effects, bistability and, in a certain sense, inversion-less operation.