title: Saturation-induced frequency shift in the noise spectrum of a birefringent vertical-cavity surface emitting laser.
abstract: We show by means of analytical and numerical calculations that saturation, in combination with the linewidth-enhancement factor and the finite rate of spin-flip processes, causes a redshift of the spontaneous-emission peak with respect to the off-lasing-mode frequency in the optical spectrum of a quantum-well vertical-cavity surface emitting laser.
authors.affiliation: Department of Physics and Astronomy, Vrije Universiteit, De Boelelaan 1081, 1081 HV Amsterdam, The Netherlands.
authors.forename: H
authors.initials: H
authors.lastname: van der Lem
authors.forename: D
authors.initials: D
authors.lastname: Lenstra