A comparative perspective on Differential Modal Gain reduction techniques for optimized few mode EDFA systems
Sign Up to like & getrecommendations! Published in 2021 at "Optik"
DOI: 10.1016/j.ijleo.2021.166285
Abstract: Abstract Different designed Modal Gain Equalized Few Mode-Erbium Doped Fiber Amplifier (FM-EDFA) systems are evaluated and compared in this paper. These systems include Two Mode (2M-EDFA), Four Mode (4 M-EDFA) and Six Mode (6 M-EDFA).… read more here.
Keywords: edfa systems; differential modal; modal gain; mode edfa ... See more keywords
Reduction of differential modal gain in a two-mode amplifier using a void-inscribed EDF.
Sign Up to like & getrecommendations! Published in 2020 at "Applied optics"
DOI: 10.1364/ao.404719
Abstract: We propose a technique for reducing the differential modal gain (DMG) that occurs in a two-mode erbium-doped fiber (2M-EDF) by inscribing voids in the core center of a 2M-EDF with a femtosecond laser. We show… read more here.
Keywords: differential modal; modal gain; void inscribed; two mode ... See more keywords
Amplification of 18 OAM modes in a ring-core erbium-doped fiber with low differential modal gain.
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DOI: 10.1364/oe.27.038087
Abstract: We theoretically propose two orbital angular momentum (OAM) erbium-doped ring-core fiber (RCF) amplifiers capable of providing relatively uniform gain for 22 modes with 18 OAM ones over the C-band. Two schemes of doping profile are… read more here.
Keywords: doped fiber; gain; differential modal; erbium doped ... See more keywords
Characterization of differential modal group delay in few-mode fiber using a digital re-sampling technique.
Sign Up to like & getrecommendations! Published in 2022 at "Optics letters"
DOI: 10.1364/ol.478350
Abstract: We characterize the differential modal group delay (DMGD) arising in few-mode fibers (FMFs) based on the digital re-sampling technique, which is commonly used in current digital signal processing flow at the receiver-side. When the DMGD… read more here.
Keywords: modal group; differential modal; digital sampling; group delay ... See more keywords