Title :
Gain Equalization for Few-Mode Fiber Amplifiers Beyond Two Propagating Mode Groups
Author_Institution :
NEC Labs. America, Inc., Princeton, NJ, USA
Abstract :
We investigate gain equalization in few-mode fibers supporting more than two-mode groups at the signal wavelengths and find that a combination of pump control and doping profile optimization is required to equalize mode-dependent gain.
Keywords :
optical communication equipment; optical fibre amplifiers; optical fibres; few mode fiber amplifiers; gain equalization; mode dependent gain; propagating mode; Doping profiles; Gain; Noise figure; Optical fiber amplifiers; Optical fiber devices; Optical fiber theory; Refractive index; Fiber optical communications; nonlinear optical signal processing;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2012.2219521
