Experimental Measurement of Absorption Coefficients for Effective Erbium-Doping Concentration to Optimize Few-Mode Erbium-Doped Fiber Amplifiers with Low Differential Mode Gain [PDF]
Photonics, 2021 According to the analytical expression for modal gain of few-mode erbium-doped fiber amplifiers (FM-EDFAs), we propose a method of measuring the absorption loss coefficients of few-mode signals in few-mode erbium-doped fibers (FM-EDFs) by extrapolating ...
Yan Xu +4 more
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Gain Equalization for Few-Mode Erbium-Doped Fiber Amplifiers via Strong Mode Coupling [PDF]
Applied Sciences, 2022 Few-mode erbium-doped fiber amplifiers (FM-EDFAs) are one of the most important optical subsystems for successful space division multiplexed transmission systems. In this paper, we propose a new FM-EDFA designed to achieve significantly reduced differential modal gain (DMG) via strong mode coupling. Using a new numerical model based on a fiber transfer
Yaping Liu +4 more
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Few-mode erbium-doped fiber amplifier based on a multi-inclusions core optical fiber
Optics Express, 2022 In this work, we demonstrate and evaluate a new design of micro-structured core erbium-doped few-mode fiber to be used as optical amplifier in the context of mode-division multiplexing. This concept is proposed so as to better control the distribution of the Er3+ ions in the core area, thus permitting to adjust the overall differential modal gains ...
Jean-Baptiste Trinel +9 more
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Mode-bases gain difference for Different phase profiles in Few-mode Erbium-doped Fiber Amplifiers [PDF]
Advanced Photonics NexusIn few-mode erbium-doped fiber, which is key sections in space division multiplexing (SDM) communication system, linearly polarized (LP) and orbital angular momentum (OAM) mode as two groups of mode-bases with different phase profile can be transformed into each other for the fiber’s weakly guiding condition.
Jie Zhang +6 more
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Few-Mode Erbium-Doped Fiber with Three-Layer Center-Recessed Doping for Gain Equalization [PDF]
SensorsWe propose a design method for few-mode erbium-doped fiber (FM-EDF) incorporating stratified doping. In the simulation design, the FM-EDF effectively reduces the differential mode gain (DMG) through the utilization of stratified doping.
Shengchen Bao +5 more
doaj +2 more sources
Optimization criteria and design of few-mode Erbium-doped fibers for cladding-pumped amplifiers
Optics Express, 2023 We propose a novel optimization method that combines two design criteria to reduce the differential modal gain (DMG) in few-mode cladding-pumped erbium-doped fiber amplifiers (FM-EDFAs). In addition to the standard criterion that considers the mode intensity and dopant profile overlap, we introduce a second criterion that ensures that all doped regions
Pierre-Olivier Janvier +5 more
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2-LP mode few-mode fiber amplifier employing ring-core erbium-doped fiber
Optics Express, 2015 A fiber amplifier supporting 2 LP modes that employs a ring-core erbium-doped fiber (RC-EDF) is investigated to reduce differential modal gain (DMG). The inner and outer radii of the ring-core of the RC-EDF are clarified for 2-LP mode operation of the amplifier, and are optimized to reduce the DMG.
Hirotaka Ono +5 more
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Gain Dynamics of Few-Mode Erbium-Doped Fiber Amplifier
IEEE Photonics Technology LettersIEEE Photonics Technology Letters.
Hirotaka Ono, Makoto Yamada
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Few-mode erbium-doped fiber amplifier with photonic lantern for pump spatial mode control
Optics Letters, 2016 We demonstrate a few-mode erbium-doped fiber amplifier employing a mode-selective photonic lantern for controlling the modal content of the pump light. Amplification of six spatial modes in a 5 m long erbium-doped fiber to ∼6.2 dBm average power is obtained while maintaining high modal fidelity.
G. López-Galmiche +11 more
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Few-mode Erbium-doped Fiber Amplifier
13th International Conference on Fiber Optics and Photonics, 2016 Few-mode fiber is emerging as an attractive option in an SDM system. EDFA for a few-mode fiber has an issue of differential modal gain (DMG) among its modes. We present EDFA designs to obtain customized DMG.
Vipul Rastogi
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