Affiliation:
1. College of Science, Henan University of Technology, Henan 450001, China
Abstract
In this paper, high-power pulse-pumped erbium–ytterbium co-doped fiber amplifiers (EYDFAs) for simultaneous amplification of low-repetition rate pulses in the 1.0 [Formula: see text]m and 1.5 [Formula: see text]m bands are numerically investigated. The influences of the peak power and pulse-width of the pump and time delay between the pump and signal pulses on the performance of the amplifier are systematically analyzed. The results show that a pulse-pumped EYDFA is capable of simultaneously amplifying dual-band pulses. The optimal pulse-width of the pump is mainly determined by the allowable power of the backward Yb amplified spontaneous emission (ASE). By simply adjusting the time delay between the pump and signal pulses, the power ratio of the dual-band signals can be easily changed. Such kind of dual-band-pulsed EYDFAs have great potential applications in fields such as the generation of visible or mid-infrared light by nonlinear frequency conversion, counter stealth Lidar, etc.
Funder
the Talent Introduction Fund
the Plan of Nature Science Fundamental Research in Henan University of Technology
Plan of Nature Science Fundamental Research in Henan University of Technology
Natural Science Project in Henan Province Department of Education
Publisher
World Scientific Pub Co Pte Lt
Subject
Condensed Matter Physics,Statistical and Nonlinear Physics