title: Reduction of residual excess noise in class-A lasers using two-photon absorption.
abstract: We demonstrate experimentally a significant reduction of the remaining excess intensity noise in a class-A semi-conductor laser. This is obtained by inserting into the laser cavity a buffer reservoir mechanism based on two-photon absorption in GaAs. The excess noise peaks at the laser-free spectral range, induced by the beating between the lasing mode and the amplified spontaneous emission in the adjacent non-oscillating modes, is reduced by 20 dB, while preserving the class-A dynamical behavior of the laser cavity.
authors.forename: Kévin
authors.initials: K
authors.lastname: Audo
authors.forename: Abdelkrim El
authors.initials: AE
authors.lastname: Amili
authors.forename: Ghaya
authors.initials: G
authors.lastname: Baili
authors.forename: Daniel
authors.initials: D
authors.lastname: Dolfi
authors.forename: Mehdi
authors.initials: M
authors.lastname: Alouini