title: Optical gain in 1.3-μm electrically driven dilute nitride VCSOAs.
abstract: We report the observation of room-temperature optical gain at 1.3 μm in electrically driven dilute nitride vertical cavity semiconductor optical amplifiers. The gain is calculated with respect to injected power for samples with and without a confinement aperture. At lower injected powers, a gain of almost 10 dB is observed in both samples. At injection powers over 5 nW, the gain is observed to decrease. For nearly all investigated power levels, the sample with confinement aperture gives slightly higher gain.
authors.affiliation: School of Computer Science and Electronic Engineering, University of Essex, Wivenhoe Park CO4 3SQ, UK. sblisesivdin@gmail.com.
authors.forename: Sefer Bora
authors.initials: SB
authors.lastname: Lisesivdin
authors.forename: Nadir Ali
authors.initials: NA
authors.lastname: Khan
authors.forename: Simone
authors.initials: S
authors.lastname: Mazzucato
authors.forename: Naci
authors.initials: N
authors.lastname: Balkan
authors.forename: Michael John
authors.initials: MJ
authors.lastname: Adams
authors.forename: Ville-Markus
authors.initials: VM
authors.lastname: Korpijärvi
authors.forename: Mircea
authors.initials: M
authors.lastname: Guina
authors.forename: Gabor
authors.initials: G
authors.lastname: Mezosi
authors.forename: Marc
authors.initials: M
authors.lastname: Sorel