title: III-V-on-silicon three-section DBR laser with over 12  nm continuous tuning range.
abstract: Device and tuning characteristics of a novel heterogeneously integrated III-V-on-silicon three-section distributed Bragg reflector (DBR) laser are presented. The laser exhibits a continuous wavelength tuning range of more than 12 nm. Thermal tuning is achieved through carrier injection in the passive tuning layer of a III-V tunable twin-guide membrane. Single-mode lasing with a side-mode suppression ratio larger than 30 dB over the entire tuning range is realized through implementation of a sidewall-corrugated silicon-on-insulator waveguide grating as one of the laser mirrors.
authors.forename: Sören
authors.initials: S
authors.lastname: Dhoore
authors.forename: Gunther
authors.initials: G
authors.lastname: Roelkens
authors.forename: Geert
authors.initials: G
authors.lastname: Morthier