Title :
Improving the Power Efficiency in End-Pumped Gain-Guided Index-Antiguided Fiber Amplifiers
Author :
Yarandi, Parisa Gandomkar ; Karbasi, Salman ; Mafi, Arash
Author_Institution :
Dept. of Electr. Eng. & Comput. Sci., Univ. of Wisconsin-Milwaukee, Milwaukee, WI, USA
Abstract :
In this paper, we highlight the key reasons behind the poor power efficiency observed in multiple experiments in gain-guided index-antiguided (GG-IAG) fiber amplifiers and lasers. We show that by properly designing the fiber geometrical characteristics, it is possible to considerably improve the power efficiency of GG-IAG fiber amplifiers in end-pumping schemes.
Keywords :
gradient index optics; optical fibre amplifiers; optical pumping; GG-IAG fiber amplifiers; end-pumped gain-guided index-antiguided fiber amplifiers; end-pumping schemes; fiber geometrical characteristics; fiber lasers; power efficiency; Absorption; Doping; Gain; Laser excitation; Laser modes; Power lasers; Pump lasers; End-pumped scheme; gain-guided index antiguided fiber; high power fiber laser and amplifier; tapered fiber;
Journal_Title :
Lightwave Technology, Journal of
DOI :
10.1109/JLT.2012.2214373
