title: Impact of input FBG reflectivity and forward pump power on RIN transfer in ultralong Raman laser amplifiers.
abstract: Relative intensity noise transfer from the pump to the signal in 2nd-order ultra-long Raman laser amplifiers for telecommunications is characterized numerically and experimentally. Our results showcase the need for careful adjustment of the front FBG reflectivity and the relative contribution of forward pump power, and their impact on performance. Finally, our analysis is verified through a 10 × 30 GBaud DP-QPSK transmission experiment, showing a large Q factor penalty associated with the combination of high forward pumping and high reflectivities.
authors.forename: Giuseppe
authors.initials: G
authors.lastname: Rizzelli
authors.forename: Md Asif
authors.initials: MA
authors.lastname: Iqbal
authors.forename: Francesca
authors.initials: F
authors.lastname: Gallazzi
authors.forename: Paweł
authors.initials: P
authors.lastname: Rosa
authors.forename: Mingming
authors.initials: M
authors.lastname: Tan
authors.forename: Juan Diego
authors.initials: JD
authors.lastname: Ania-Castañón
authors.forename: Lukasz
authors.initials: L
authors.lastname: Krzczanowicz
authors.forename: Pedro
authors.initials: P
authors.lastname: Corredera
authors.forename: Ian
authors.initials: I
authors.lastname: Phillips
authors.forename: Wladek
authors.initials: W
authors.lastname: Forysiak
authors.forename: Paul
authors.initials: P
authors.lastname: Harper