title: Multicore fiber distributed feedback lasers.
abstract: We demonstrate parallel fabrication of seven fiber distributed feedback (DFB) lasers in a hexagonally arrayed multicore core Er doped fiber with 40 μm core spacing. DFB grating cavities 8 cm long and operating near 1545 nm were fabricated with a single UV inscription exposure. We observed dual polarization, single longitudinal mode operation with a linewidth below 300 kHz for each laser.
authors.affiliation: OFS Laboratories, 19 Schoolhouse Road, Somerset, New Jersey 08873, USA. westbrook@ofsoptics.com
authors.forename: P S
authors.initials: PS
authors.lastname: Westbrook
authors.forename: K S
authors.initials: KS
authors.lastname: Abedin
authors.forename: T F
authors.initials: TF
authors.lastname: Taunay
authors.forename: T
authors.initials: T
authors.lastname: Kremp
authors.forename: J
authors.initials: J
authors.lastname: Porque
authors.forename: E
authors.initials: E
authors.lastname: Monberg
authors.forename: M
authors.initials: M
authors.lastname: Fishteyn