Open AccessExperimental Study of Output Characteristics of Bi-Directional Pumping High Power Fiber Amplifier in Different Pumping Schemes
Author(s) -
Chen Shi,
Rong Tao Su,
Han Wei Zhang,
Bao Lai Yang,
Xiao Lin Wang,
Pu Zhou,
Xiao Jun Xu,
Qi Sheng Lu
Publication year - 2017
Publication title -
ieee photonics journal
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.725
H-Index - 73
eISSN - 1943-0655
pISSN - 1943-0647
DOI - 10.1109/jphot.2017.2679753
Subject(s) - engineered materials, dielectrics and plasmas , photonics and electrooptics
In this paper, we have constructed an all-fiberized bi-directional pumping fiber amplifier. The output time domain signals and limitations of copumping and counterpumping schemes were experimentally investigated. The power scaling of copumping and counterpumping scheme is restricted by stimulated Raman scattering (SRS) and transverse modal instability (TMI), respectively. The highest output power of 3.06 kW was achieved by using bi-directional pumping. Finally, we tested the relationship between SRS threshold and injected seed power.