title: Three mode Er3+ ring-doped fiber amplifier for mode-division multiplexed transmission.
abstract: We successfully fabricate three-mode erbium doped fiber with a confined Er(3+) doped ring structure and experimentally characterize the amplifier performance with a view to mode-division multiplexed (MDM) transmission. The differential modal gain was effectively mitigated by controlling the relative thickness of the ring-doped layer in the active fiber and pump launch conditions. A detailed study of the modal gain properties, amplifier performance in a MDM transmission system and inter-modal cross-gain modulation and associated transient effects is presented.
authors.affiliation: Optoelectronics Research Centre, University of Southampton, Southampton, SO17 1BJ, UK. ymj@orc.soton.ac.uk
authors.forename: Y
authors.initials: Y
authors.lastname: Jung
authors.forename: Q
authors.initials: Q
authors.lastname: Kang
authors.forename: V A J M
authors.initials: VA
authors.lastname: Sleiffer
authors.forename: B
authors.initials: B
authors.lastname: Inan
authors.forename: M
authors.initials: M
authors.lastname: Kuschnerov
authors.forename: V
authors.initials: V
authors.lastname: Veljanovski
authors.forename: B
authors.initials: B
authors.lastname: Corbett
authors.forename: R
authors.initials: R
authors.lastname: Winfield
authors.forename: Z
authors.initials: Z
authors.lastname: Li
authors.forename: P S
authors.initials: PS
authors.lastname: Teh
authors.forename: A
authors.initials: A
authors.lastname: Dhar
authors.forename: J
authors.initials: J
authors.lastname: Sahu
authors.forename: F
authors.initials: F
authors.lastname: Poletti
authors.forename: S-U
authors.initials: SU
authors.lastname: Alam
authors.forename: D J
authors.initials: DJ
authors.lastname: Richardson
mesh_terms: D000669:Amplifiers, Electronic; D004867:Equipment Design; D019544:Equipment Failure Analysis; D005336:Fiber Optic Technology / Q000295:instrumentation*; D053844:Lasers, Solid-State; D013685:Telecommunications / Q000295:instrumentation*