Advances in Optical Amplifiers

Urquhart, Paul

doi:10.5772/571

Cited by 10 publications

(4 citation statements)

References 275 publications

(379 reference statements)

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“…Nevertheless, the simulation techniques that are commonly used for RA's have demanded exhaustive computational time, due to the use of direct integration of the coupled differential equations that describe the RA behavior [13,14]. The coupled differential equations have the shape observed in (1). A similar set of equations, describing the backward propagation, is solved at the same time we solve the forward equations written below [15][16][17].…”

Section: Raman Amplifier-average Power Modelmentioning

confidence: 99%

“…A similar set of equations, describing the backward propagation, is solved at the same time we solve the forward equations written below [15][16][17]. More details about in (1) with the physical effects taken into account for this amplifier can be found in [16],…”

Section: Raman Amplifier-average Power Modelmentioning

confidence: 99%

“…In order to eliminate the dependence in a small segment length, average powers in each section are introduced in (4). So, basically, we rearranged some terms of the original in (1) and reduce equations to a simplest form, suitable for our analysis, can be written as [18]:…”

Section: Raman Amplifier-average Power Modelmentioning

confidence: 99%

“…They offer the means to offset the losses produced by the fiber transmission medium, the optical fiber basic elements placed in the broadcast path and the power split at optical splitters. So these amplifiers ease the extraordinary global abilities, long transmission durations and multipoint-to-multipoint connectivity necessary for act with increasing data sizes [1]. A brief account of the collection of researches and previous works related with those used in this work are listed below.…”

Section: Introductionmentioning

confidence: 99%

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Comparative performance of optical amplifiers: Raman and EDFA

Mohammed

Younis

2020

TELKOMNIKA

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The in-line optical signal amplification is often used in optical communication systems to accomplish longer transmission distances and larger capacity. In this proposed paper, the operation of two types of optical amplifiers for 16×10 Gbps wavelength division multiplexing system had been examined by changing transmission distance from 10 to 200 km with a dispersion equals to 16.75 ps/nm/km. The analysis and design of such systems ordinarily includes many signal channels, nonlinear devices, several topologies with many noise sources, is extremely complex and effort-exhaustive. Therefore, theoretical studies with simulation CAD software of systems are become necessity to predict and optimize system performance. The comparison between EDFA and Raman has already explored by many researchers in varying ways in this work and to achieve obove objectives, the OptiSystem software was used to design the proposed fiber optic communications system and to simulate results. Performance for the present system was evaluated for parameters like bit error rate (BER), quality factor (QF), total gain with eye opening factor. It was saw that EDFA provides better results, in the maximal transmission distance 64% better than Raman amplifier, 57.5% for amplification gain and 26.7% for maximum quality factor. As a future study a hybrid amplifier can produce better quality of amplification.

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Section: Raman Amplifier-average Power Modelmentioning

confidence: 99%

Section: Raman Amplifier-average Power Modelmentioning

confidence: 99%

Section: Raman Amplifier-average Power Modelmentioning

confidence: 99%

Section: Introductionmentioning

confidence: 99%

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Comparative performance of optical amplifiers: Raman and EDFA

Mohammed

Younis

2020

TELKOMNIKA

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Site-selective laser spectroscopy of Sm3+ ions in Y4Al2O9

Kaczkan¹,

Boruc²,

Turczyński

et al. 2016

Journal of Luminescence

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Multiwavelength diode-laser absorption spectroscopy using external intensity modulation by semiconductor optical amplifiers

et al. 2012

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A novel opto-electronic scheme for line-of-sight Near-IR gas absorption measurement based on direct absorption spectroscopy (DAS) is reported. A diode-laser-based, multiwavelength system is designed for future application in nonintrusive, high temporal resolution tomographic imaging of H2O in internal combustion engines. DAS is implemented with semiconductor optical amplifiers (SOAs) to enable wavelength multiplexing and to induce external intensity modulation for phase-sensitive detection. Two overtone water transitions in the Near-IR have been selected for ratiometric temperature compensation to enable concentration measurements, and an additional wavelength is used to account for nonabsorbing attenuation. A wavelength scanning approach was used to evaluate the new modulation technique, and showed excellent absorption line recovery. Fixed-wavelength, time-division-multiplexing operation with SOAs has also been demonstrated. To the best of our knowledge this is the first time SOAs have been used for modulation and switching in a spectroscopic application. With appropriate diode laser selection this scheme can be also used for other chemical species absorption measurements.

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Advances in Optical Amplifiers

Cited by 10 publications

References 275 publications

Comparative performance of optical amplifiers: Raman and EDFA

Comparative performance of optical amplifiers: Raman and EDFA

Site-selective laser spectroscopy of Sm3+ ions in Y4Al2O9

Multiwavelength diode-laser absorption spectroscopy using external intensity modulation by semiconductor optical amplifiers

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