Gain Improvement in Two-stage L-Band EDFA with Incorporation of Fiber Bragg Grating by Harun, Sulaiman Wadi, Ahmad, Harith

“…The gain improvement in two-stage long wavelength band erbium doped fiber amplifier (L-band EDFA) is demonstrated by incorporation of broadband C-band fiber Bragg grating (FBG). …”

Temperature insensitive broad and flat gain C-band EDFA based on macro-bending by Hajireza, Parsin, Emami, Siamak Dawazdah, Abbasizargaleh, Soroush, Harun, Sulaiman Wadi, Kumar, Deepak, Abdul-Rashid, Hairul Azhar

“…In this paper, a new method is proposed to achieve a temperature insensitive, broad and flat gain C-band erbium-doped fiber amplifier (EDFA) with aid of macro-bending. This gain flattened C-band EDFA is demonstrated by utilizing 2.5 m macro-bent Erbium-doped fiber (EDF) at room temperature of 25°C. …”

Design And Evaluation Of A Dual Core Erbium Doped Fiber Amplifier (Dc-Edfa) by Alsharjabi, Abdullatif Mohammed

“…Traditional erbium doped fiber amplifiers EDFA (unidirectional signaling) can only amplify signals propagating in a single direction, as some isolators must be installed to eliminate the reflections from end faces and fusion points. …”
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Bidirectionally-pumped remote L-band EDFA module utilizing stimulated Raman scattering by Abu Bakar, Muhammad Hafiz, Abas, Ahmad Fauzi, Mokhtar, Makhfudzah, Mahdi, Mohd Adzir

“…This research was centered on an enhanced bidirectionally-pumped remote L-band erbium-doped fiber amplifier (EDFA) module. The amplifier was backward-pumped using 1455 nm Raman laser while the SRS generated in the delivery line pumped the remote EDFA in the forward direction. …”
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Gain-flattened dual-stage L-band EDFA by using pump power distribution by Md. Yusoff, Nelidya, Abd. Rahman, Zubaidah, Sulaiman, Abdul Hadi, Abas, Ahmad Fauzi, Hitam, Salasiah, Mahdi, Mohd Adzir

“…An L-band erbium doped fiber amplifier (EDFA) with dual-stage architecture was proposed that gives a considerably flatten wavelength response of less than 3 dB gain variations. …”
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Investigation of hybrid gain-clamped Raman-fiberamplifier/EDFA utilizing pump reuse technique by Ahmad, A., Mahdi, Mohd Adzir, Md Ali, Mas Izyani, Zamzuri, Abdul Kadir

“…By cascading the RFA and EDFA in series, the hybrid gain-clamped amplifiers suffer performance degradation due to the unique characteristics of RFA and EDFA. …”
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EXAMINING OF ASE AT THE ERBIUM DOPED FIBER AMPLIFIERS by H. Haldun GÖKTAŞ, Murat YÜCEL

Subjects: “…EDFA, ASE, Gürültü, Optik yükselteç…”
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Resilience to Passive Attacks of a Secure Key Distribution System Based on an Ultra-Long Fiber Laser Using a Bi-Directional EDFA by Beatriz Soares, Paulo Robalinho, Ariel Guerreiro, Orlando Frazão

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Gain enhancement in L-band EDFA by splitting EDF into two stages [UTM journal article] / by 196730 Sulaiman Wadi Harun, Harith Ahmad

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Relaying System Based on Few-Mode EDFA for Space Division Multiplexing Wireless Optical Communication by Beibei Cui, Shanyong Cai, Zhiguo Zhang

Subjects: “…Few-mode EDFA…”
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基于EDFA与RFA的增益可调的混合光纤放大器 by 刘新华, 付成鹏, 杨智

“…针对目前混合光纤放大器存在的一些问题,文章提出一种基于EDFA（掺铒光纤放大器）和RFA（拉曼光纤放大器）的混合光纤放大器,利用统一的控制平台来调整增益的变化,不需要内置VOA（可变光衰减器）,RFA增益与EDFA增益可以相互补偿,其增益斜率也可以相互补偿,保证了增益的平坦性。…”
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Towards an optical MIMO system performance improvement using MGDM multiplexing and EDFA optical amplification by Nourddine Elhajrat, Fouad Essahlaoui, Omar Eloutassi, Mohammed Halimi

“…To decrease interference between the modes of the same groups and to correct for attenuation of the signal on a 1200 m cable, two EDFA optical amplifiers were integrated. The simulation of the proposed chain (3 × 3) MIMO of distance 1.2 Km is realized to transmit data with a total rate of about 4.5 Gb/s (1.5 Gb/s for each user). …”
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混合放大器（Raman+EDFA）在10 Gbit/s长距离传输中的应用 by 杨滔滔, 印新达, 付成鹏, 何万晖

“…文章介绍了拉曼放大器（RA）与掺铒光纤放大器（EDFA）组成的混合放大器在10Gbit/sSDH系统中的应用.在160km的G.652光纤线路中,在没有前向纠错（FEC）的情况下,采用混合放大器能够将系统的接收灵敏度提高到-37.5dBm.将采用混合放大器的系统结构与另外两种系统结构进行比较和分析,指出混合放大器的优越性.…”
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EDFA: Ensemble deep CNN for assessing student's cognitive state in adaptive online learning environments by Swadha Gupta, Parteek Kumar, RajKumar Tekchandani

“…The system has been implemented on four separate databases and evaluated using three ensemble models: FT-EDFA, FC-EDFA, and OT-EDFA. The ensemble models have been created by applying transfer learning to two popular pre-trained models, VGG19 and ResNet50, which can learn useful features from facial images for emotion recognition tasks. …”
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Broad-band EDFA gain flattening by using an embedded long-period fiber grating filter by Dong, X. Y., Ni, Na, Chan, Chi Chiu, Tan, Khay Ming, Tjin, Swee Chuan

“…An erbium-doped fiber amplifier (EDFA) gain flattening technique using an embedded long period grating (ELPG) is proposed. …”
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Gain improvement in L-band EDFA using unpumped EDF in a double pass system by Harun, Sulaiman Wadi, Tamchek, Nizam, Poopalan, Prabakaran, Ahmad, Harith

“…A new gain improvement technique for L-band EDFA is presented. It uses an unpumped EDF in a double-pass configuration in order to effectively suppress and completely exploit the backward ASE. …”

Gain-clamped two-stage L-band EDFA with a FBG laser in second stage by Harun, Sulaiman Wadi, Ahmad, Harith

“…A gain-clamped two-stage L-band EDFA is demonstrated by simply incorporating two different FBGs on both side of EDF in the second stage. …”

Gain improvement in a dual-stage S-band EDFA by filtration of forward C-band ASE by Harun, Sulaiman Wadi, Zulkifli, Mohd Zamani, Tamjis, Mohamad Rom, Ahmad, Harith

“…Gain improvement in a dual-stage S-band erbium-doped fiber amplifier (S-band EDFA) is demonstrated using a broadband fiber Bragg grating (FBG) operating in the conventional-band (C-band) region or a C-band/S-band wavelength division multiplexing (WDM) coupler which filters out the forward C-band amplified spontaneous emission (ASE) in the amplifier system, thus increasing the population inversion in the S-band region. …”

Spectral hole burning effects initiated by uniform signal intensities in a gain-flattened EDFA by Sarmani, A.R., Sheih, S.J., Adikan, Faisal Rafiq Mahamd, Mahdi, M.A.

“…Spectral hole burning (SHB) effects in a gain-flattened erbium-doped fiber amplifier (EDFA) are demonstrated to be significant in the presence of large signal power around the 1530-1532-nm wavelength range. …”

Spectral gain characteristics induced by 980 nm pumping band in a gain-Flattened EDFA by Sarmani, A.R., Sheih, S.J., Adikan, Faisal Rafiq Mahamd, Mahdi, M.A.

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