title: Amplification and noise properties of an erbium-doped multicore fiber amplifier.
abstract: A multicore erbium-doped fiber (MC-EDF) amplifier for simultaneous amplification in the 7-cores has been developed, and the gain and noise properties of individual cores have been studied. The pump and signal radiation were coupled to individual cores of MC-EDF using two tapered fiber bundled (TFB) couplers with low insertion loss. For a pump power of 146 mW, the average gain achieved in the MC-EDF fiber was 30 dB, and noise figure was less than 4 dB. The net useful gain from the multicore-amplifier, after taking into consideration of all the passive losses, was about 23-27 dB. Pump induced ASE noise transfer between the neighboring channel was negligible.
authors.affiliation: OFS Laboratories, 19 Schoolhouse Road, Somerset, NJ 08873, USA. kabedin@ofsoptics.com
authors.forename: K S
authors.initials: KS
authors.lastname: Abedin
authors.forename: T F
authors.initials: TF
authors.lastname: Taunay
authors.forename: M
authors.initials: M
authors.lastname: Fishteyn
authors.forename: M F
authors.initials: MF
authors.lastname: Yan
authors.forename: B
authors.initials: B
authors.lastname: Zhu
authors.forename: J M
authors.initials: JM
authors.lastname: Fini
authors.forename: E M
authors.initials: EM
authors.lastname: Monberg
authors.forename: F V
authors.initials: FV
authors.lastname: Dimarcello
authors.forename: P W
authors.initials: PW
authors.lastname: Wisk