Search for dissertations about: "fiber-optic technique"
Showing result 1 - 5 of 18 swedish dissertations containing the words fiber-optic technique.
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1. Ultrahigh Capacity Fiber-Optic Transmission Systems
Abstract : The subject of this thesis is ultrahigh capacity optical communication systems. Such systems will use a combination of techniques for dense wavelength-division multiplexing (D-WDM) and ultrahigh speed all-optical time-division multiplexing (O-TDM). READ MORE
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2. Frequency Transfer Techniques and Applications in Fiber Optic Communication Systems
Abstract : Modern society is dependent on communications and the developments of these increases constantly through a seemingly endless demand for communication services and thereby synchronization and time. This is confirmed by a vast range of research on communications, irrespective of technology and protocol. READ MORE
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3. Fiber optic parametric amplifiers in single and multi wavelength applications
Abstract : This thesis describes fiber optical parametricamplifiers (FOPAs) used in single- and multi-wavelength channel applications.The FOPA was operated as a pulse source in optical transmission systems at bit rates of 10-160 Gb/s. It was evaluated in terms of bit error rate after transmission with link lengths up to 650 km. READ MORE
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4. Optical Amplifiers and their Applications in Nonlinear Fiber-Optic Communication Systems
Abstract : The work presented in this dissertation deals with the characterization and modeling of optical amplifiers as well as their applications in nonlinear transmission systems with the main motivation to enhance system capacity. In the first part of the dissertation the work is focused on two different types of amplifiers: the semiconductor laser amplifier (SLA) and the erbium-doped fiber amplifier (EDFA). READ MORE
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5. Time and Frequency Transfer using Passive Techniques in Active Fiber Optic Networks
Abstract : For the modern society, high precision time and frequency transfer have become crucial since a large number of systems, such as telecommunication systems, require precise and stable synchronization. Electric power companies use synchronized systems for taking stability measurements and searching for errors in their networks. READ MORE