Search for dissertations about: "amplified spontaneous emission"

Showing result 1 - 5 of 7 swedish dissertations containing the words amplified spontaneous emission.

  2. 1. Signal restoration with the nonlinear optical loop mirror

    Author : Beng-Erik Olsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; fiber couplers; extinction ratio; pulse extraction; nonlinear filtering; noise filtering; nonlinear optics; amplified spontaneous emission; optical switching; signal polarization independent noise filter; nonlinear optical loop mirror; sagnac interferometer; high intensity optical pulses;

    Abstract : .... READ MORE

  4. 2. Interaction of sound waves with a swirl stabilized wood powder flame and their effects on flame characteristics

    Author : Burak Göktepe; Henrik Wiinnika; Luleå tekniska universitet; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Energy Engineering; Energiteknik;

    Abstract : Swirling flows have been widely used for many years in engineering applications such as; chemical and mechanical mixing devices, separation units, spray drying technologies, turbo machinery and combustion systems. In practical combustion applications, swirl motion has been adopted to the incoming reactant flows in order to enhance the mixing of fuel and oxidizer and to improve flame stabilization and establishment, especially in regions of relatively low velocities, by recirculating hot product gas to the incoming reactants. READ MORE

  5. 3. Optical Amplifiers and their Applications in Nonlinear Fiber-Optic Communication Systems

    Author : Kent Bertilsson; Chalmers tekniska högskola; []
    Keywords : TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    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

  6. 4. Optical Properties of Nanoparticles in Composite Materials

    Author : Lin Dong; Sergei Popov; Ari Friberg; Toralf Scharf; KTH; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES;

    Abstract : Nanoparticles are synthetic structures with dimension from 1 to 100 nanometers and are various in types. Some favorable properties peculiar to the nanoparticles (generally owing to size effects) make them prevailing and beneficial for applications in different scientific and engineering fields. READ MORE

  7. 5. Toward Creating a Coherent, Next-Generation Light Source with special emphasis on nonlinear harmonic generation in single-pass, high-gain free-electron lasers

    Author : Sandra G. Biedron; Lunds universitet; []
    Keywords : NATURVETENSKAP; NATURAL SCIENCES; Visible and Ultraviolet Sources; Intense Particle Beams and Radiation Sources; Frequency Conversion; Free-Electron Lasers; Harmonic Generation; Physics; Fysik;

    Abstract : There is a strong desire for short wavelength (~1 Å), short pulsewidth (.... READ MORE