title: Mutual optical injection in coupled DBR laser pairs.
abstract: We report an experimental study of nonlinear effects, characteristic of mutual optical coupling, in an ultra-short coupling regime observed in a distributed Bragg reflector laser pair fabricated on the same chip. Optical feedback is amplified via a double pass through a common on-chip optical amplifier, which introduces further nonlinear phenomena. Optical coupling has been introduced via back reflection from a cleave-ended fibre. The coupling may be varied in strength by varying the distance of the fibre from the output of the chip, without significantly affecting the coupling time.
authors.affiliation: School of Computer Science and Electronic Engineering, University of Essex, Colchester, UK.
authors.forename: M P
authors.initials: MP
authors.lastname: Vaughan
authors.forename: I
authors.initials: I
authors.lastname: Henning
authors.forename: M J
authors.initials: MJ
authors.lastname: Adams
authors.forename: L J
authors.initials: LJ
authors.lastname: Rivers
authors.forename: P
authors.initials: P
authors.lastname: Cannard
authors.forename: I F
authors.initials: IF
authors.lastname: Lealman