Open AccessHybrid cladding-pumped multicore EDFA/Raman amplification for space division multiplexing transmission systems
Author(s) -
Takayuki Mizuno,
Akira Isoda,
Kohki Shibahara,
Hirotaka Ono,
Mitsunori Fukutoku,
Yutaka Miyamoto
Publication year - 2018
Publication title -
optics express
Language(s) - Uncategorized
Resource type - Journals
SCImago Journal Rank - 1.394
H-Index - 271
ISSN - 1094-4087
DOI - 10.1364/oe.26.013639
Subject(s) - raman amplification , optical amplifier , cladding (metalworking) , wavelength division multiplexing , optics , materials science , multiplexing , optoelectronics , computer science , physics , telecommunications , laser , wavelength , metallurgy
We propose and demonstrate a hybrid cladding-pumped multicore erbium-doped fiber amplifier (EDFA) and distributed Raman amplification for space division multiplexing transmission systems. The cladding-pumped multicore EDFA is used to efficiently amplify signals in multiple cores simultaneously, while Raman pumping is used to control loss in each core individually. We construct an in-line amplified 7-core transmission line, and show that distributed Raman amplification can compensate loss variation between cores. Furthermore, we transmit 46 WDM PDM-16QAM signals over a long distance of greater than 1000 km and demonstrate good transmission performance.