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
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
doaj +2 more sources
Few-mode erbium-doped fiber amplifier based on a multi-inclusions core optical fiber
Optics Express, 2023 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 ...
Geraud Bouwmans +2 more
exaly +3 more sources
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
exaly +3 more sources
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.
J Rodríguez Asomoza +2 more
exaly +4 more sources
Gain Dynamics of Few-Mode Erbium-Doped Fiber Amplifier
IEEE Photonics Technology LettersIEEE Photonics Technology Letters.
Makoto Yamada, Hirotaka Ono
exaly +3 more sources
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.
Makoto Yamada +2 more
exaly +3 more sources
Flattening Few Mode Fiber Laser Source Based on PMF and Loop Mirror in a Ring Cavity Resonator [PDF]
Journal of Optoelectronical Nanostructures, 2023 : A multi-wavelength source using a hybrid amplifier comprised of a Semiconductor Optical Amplifier (SOA) and an Erbium-doped fiber amplifier (EDFA) in a ring fiber laser set up is proposed. Multi-wavelength sources are less expensive and more efficient
Sharifeh Shahi
doaj +1 more source
IEEE Photonics Journal, 2021 We propose a design of ring-core few-mode fiber (RC-FMF) with the erbium doping at the cladding region near the outer ring edge. After the parameter optimization of the RC-FM-EDF, the intensity overlapping difference between LP01 and LP11 modes can be ...
Yihong Fang +5 more
doaj +1 more source
Multiple-Ring-Core FM-EDF for Weakly-Coupled MDM Amplification With Low Differential Modal Gain
IEEE Photonics Journal, 2021 Recently weakly-coupled mode-division multiplexing (MDM) transmission systems and networks based on ultralow-modal-crosstalk few-mode fiber (FMF) have attracted much interest, for which optical amplification technologies with low modal crosstalk and two ...
Jinglong Zhu +7 more
doaj +1 more source