Results 141 to 150 of about 6,564 (184)
Latest results and future perspectives on Few-Mode Erbium Doped Fiber Amplifiers
Abstract Space division multiplexing has generated a lot of interest during the last five years and motivated intensive work on multicore and few-mode fibers. Whereas some concepts like multimode waveguides and mode coupling have been re-visited for mode-division multiplexing, some new problems have been addressed, as is the case for multimode ...
Jean-Baptiste Trinel +4 more
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Strongly Coupled Few-mode Erbium-doped Fiber Amplifiers with Ultralow Differential Modal Gain
We propose new few-mode EDFAs based on strong mode coupling, which can be realized by distributed long-period gratings. As a result, an ultralow differential modal gain of 0.5 dB can be achieved with layered doping.
Yaping Liu +4 more
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Modal gain equalization in a few moded Erbium-doped fiber amplifier
We present results on broadband gain equalisation in a MM-EDFA for SDM transmission obtained by optimization of the pump launch and careful tailoring of both the fiber refractive index profile and erbium ion distribution.
S. U. Alam +6 more
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This paper describes the system performance of mode division multiplexing applications. The mode of amplification involved a ring profile-based multi-mode erbium-doped fiber amplifier with minimum support of 10 vortex spatial modes. The vortex modes are configured and generated by the vortex lens whose input is excited by a spatial laser source.
D. Vigneswaran +3 more
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Modal Gain Equalization of Few-mode Erbium-doped Fiber Amplifiers Enabled by Mirrored Mode Exchanges
We propose a six-mode erbium-doped fiber amplifier with significantly reduced differential modal gain (DMG) by mirrored exchanging of the spatial modes for the first time. A DMG of <1.8 dB across the whole C-band is experimentally achieved.
Tao Xu +10 more
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We measure the modal gain and noise figure characteristics of a ring-doped few-mode erbium-doped fiber amplifier. We obtained 1 dB higher gain in LP11 than LP01 at an average of 12.5 dB per mode.
Ezra Ip +7 more
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In mode-division multiplexing (MDM) optical transmission systems and MDM networks, the gain must be kept nearly constant even when the input signal power of the few-mode (FM), erbium-doped fiber amplifier (EDFA) changes. This paper investigates controllability of the gain in a 4-LP mode EDFA, whose EDF has signal modes of LP01, LP11, LP21, and LP02 or ...
Hirotaka Ono, Makoto Yamada
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Few-mode erbium-doped fiber amplifier for mode-division multiplexed transmission
Yuanpeng Ding +8 more
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Optimized Two-Stage Few-Mode Erbium Doped Fiber Amplifier
Astrid Lozada, Ricardo Olivares
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Hybrid-Pumped Few-Mode Erbium-Doped Fiber Amplifier for Gain Equalization
Zhiqi Li +8 more
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