Open AccessLow-crosstalk few-mode EDFAs using retro-reflection for single-mode fiber trunk lines and networks
Author(s) -
Ning Wang,
Inwoong Kim,
Olga Vassilieva,
Tadashi Ikeuchi,
He Wen,
Jose Enrique Antonio-López,
Juan Carlos Alvarado-Zacarias,
Huiyuan Liu,
Shanshan Fan,
Selim Habib,
Rodrigo AmezcuaCorrea,
Guifang Li
Publication year - 2019
Publication title -
optics express
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.27.035962
Subject(s) - crosstalk , optics , single mode optical fiber , wavelength division multiplexing , mode volume , photonics , optical fiber , physics , polarization maintaining optical fiber , fiber optic sensor , wavelength
Few-mode EDFAs with low channel crosstalk can replace multiple parallel single-mode EDFAs in single-mode fiber trunk lines and networks. Here we proposed a low-crosstalk few-mode EDFA by exploiting the unitary property of the coupling matrix of a symmetric photonic lantern. We experimentally demonstrated a 3-channel few-mode EDFA using retro-reflection of a 3-mode symmetric photonic lantern. The small signal gain for all three channels are measured to be larger than 25 dB over the entire C-band and the crosstalks are below -10 dB.