Journal ArticleDOI
Effect of Cascading Amplification Stages on the Performance of Serial Hybrid Fiber Amplifier
M. H. Ali,Fairuz Abdullah,Md. Zaini Jamaludin,Mohammed Hayder Al-Mansoori,A. K. Abass,T. F. Al-Mashhadani +5 more
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In this article, the authors demonstrate simulation and experimental validation of a wideband serial hybrid Raman/erbium-doped fiber amplifier with a flat gain bandwidth of 40 nm.Abstract:
This study demonstrates simulation and experimental validation of a wideband serial hybrid Raman/erbium-doped fiber amplifier. Two configurations are adopted; in type A, a Raman amplifier is the first stage, and in type B, an erbium-doped fiber amplifier is the first stage. At low input signal power, the average gain level is 20 dB with a flat gain bandwidth of 40 nm for both configurations. The noise figure in type B is dominated by the erbium-doped fiber amplifier and produces lower values and flatter spectra than in type A. The gain of the proposed hybrid amplifiers is affected more by the second amplification stage.read more
Citations
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Journal ArticleDOI
Characteristics of Chirped Fiber Bragg Grating Dispersion Compensator Utilizing Two Apodization Profiles
TL;DR: Shaymaa R. Tahhan, Abdulla K. Abass, and Mudhafar H. Ali Laser and Optoelectronics Engineering Department, College of Engineering, Al-Nahrain University, Baghdad, Iraq
Journal ArticleDOI
32 Channel × 40 Gb/s WDM optical communication system utilizing different configurations of hybrid fiber amplifier
TL;DR: The CSP-HFA shows better performance than serial and parallel hybrid amplifiers in terms of wider flat gain bandwidth, higher quality factor, lower bit error rate, and wider and clearer eye opening.
Journal ArticleDOI
Pump power optimization for hybrid fiber amplifier utilizing second order stimulated Raman scattering
TL;DR: In this article, a wideband serial hybrid fiber amplifier based on second order stimulated Raman scattering (SO-SRS) is demonstrated for six different Raman gain medium lengths.
Journal ArticleDOI
Optimization of Hybrid Fiber Amplifier Utilizing Combined Serial-Parallel Configuration
A. K. Abass,M. H. Ali +1 more
Journal ArticleDOI
Gain-flattened hybrid EDFA operating in C + L band with parallel pumping distribution technique
Alabbas A. Al-Azzawi,Aya A. Almukhtar,Anirban Dhar,Mukul Chandra Paul,Harith Ahmad,Ahmet Altuncu,Retna Apsari,Sulaiman Wadi Harun +7 more
TL;DR: In this article, a hybrid erbium-doped fiber amplifier (EDFA) using a two-stage configuration was proposed and demonstrated experimentally, which achieved a gain flattening of over 55nm bandwidth for the three levels of the input powers.
References
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Journal ArticleDOI
Modeling erbium-doped fiber amplifiers
TL;DR: Erbium-doped fiber amplifiers are modeled using the propagation and rate equations of a homogeneous two-level laser medium, and numerical methods are used to analyze the effects of optical modes and erbium confinement on amplifier performance.
Book
Erbium-Doped Fiber Amplifiers: Fundamentals and Technology
TL;DR: The history of Erbium-doped fiber amplifiers can be found in this article, where the authors present a survey of the development of fiber-based Amplifiers in FIBER networks.
Journal ArticleDOI
Raman amplifiers for telecommunications
Abstract: Raman amplifiers are being deployed in almost every new long-haul and ultralong-haul fiber-optic transmission systems, making them one of the first widely commercialized nonlinear optical devices in telecommunications. This paper reviews some of the technical reasons behind the wide-spread acceptance of Raman technology. Distributed Raman amplifiers improve the noise figure and reduce the nonlinear penalty of fiber systems, allowing for longer amplifier spans, higher bit rates, closer channel spacing, and operation near the zero-dispersion wavelength. Lumped or discrete Raman amplifiers are primarily used to increase the capacity of fiber-optic networks, opening up new wavelength windows for wavelength-division multiplexing such as the 1300 nm, 1400 nm, or short-wavelength S-band. As an example, using a cascade of S-band lumped amplifiers, a 20-channel, OC-192 system is shown that propagates over 867 km of standard, single-mode fiber. Raman amplifiers provide a simple single platform for long-haul and ultralong-haul amplifier needs and, therefore, should see a wide range of deployment in the next few years.
Book
Raman amplification in fiber optical communication systems
TL;DR: In this article, Stimulated Raman Scattering in Optical Fibers Raman Pumping in Optical Fiber Communications Distributed Raman amplification along the transmission span Discrete Raman amplifiers Impairments and Limitations to Raman Amplification.
Journal ArticleDOI
Flat-Gain L-Band Raman-EDFA Hybrid Optical Amplifier for Dense Wavelength Division Multiplexed System
TL;DR: In this article, an efficient gain-flattened L-band optical amplifier is demonstrated using a hybrid configuration with a distributed Raman amplifier (DRA) and an erbium-doped fiber amplifier (EDFA) for 160 × 10-Gb/s dense wavelength division multiplexed system at 25 GHz interval.