Characterization and optimization of erbium-doped fiber amplifiers used in optical communication systems

Other Title(s)

وصف و تحسين المضخم الضوئي المضاف له عنصر الايربيوم المستخدم في أنظمة الاتصالات الضوئية

Dissertant

Salim, Salimah Manbi Ali

Thesis advisor

Mansur, Ibrahim

University

Al-Ahliyya Amman University

Faculty

Faculty of Engineering

Department

Department of Electronics & Communication Engineering

University Country

Jordan

Degree

Master

Degree Date

2013

English Abstract

This thesis deals with the properties of Erbium-doped fiber amplifiers (EDFAs).

The EDFA is an optical amplifier that is used in the 1550 nm window of optical fibers.

The objective of this work is to analyze and optimize the performance of EDFA systems with single and multi¬wavelengths input sources.

The Performance of optical communication systems is enhanced by the use of EDF.

EDFA is an important element in Coarse Wavelength-Division Multiplexing (CWDM) and Dense Wavelength Division Multiplexing (DWDM) networks.

The study can achieve gain by modeling the dynamic characteristics of an EDFA, and presents basic EDFA model operating on single (1550 nm) and multi (1525-1565 nm) wavelength operation with their simulation results, then numerical simulations are used to evaluate the amplifier performance as function of manufacturing parameters and operating conditions, using this numerical model a computer program is developed to calculate the amplifiers gain and noise figure under certain conditions.

A study is made on the amplification mechanism ill the amplifier.

These results in a software program called optisystem 7.0, by changing in the operation or design parameters such as input signal power, pump power, pump wavelength, length of active fiber and single stage or two stages EDFAs ; different performance parameters (gain and noise figure) can be optimized.

The focus in this work is to study deeply EDFAs and then to improve the design for best performance (maximizing gain and reducing noise figure).

Moreover, a study is performed to find the best amplifier parameters that advice power level of the pump which will maximize gain and improve the performance of the device.

Therefore, this study investigates in details the optimization process of EDFAs in optical communications networks.

Main Subjects

Engineering & Technology Sciences (Multidisciplinary)

Topics

• Optical communications

• APA
• MLA
• AMA

Language

English

Data Type

Arab Theses

Record ID

BIM-357860