Sökning: "all-optical regeneration"

Hittade 4 avhandlingar innehållade orden all-optical regeneration.

  1. 1. Nonlinear intrachannel distortion in high-speed optical transmission systems

    Författare :Pontus Johannisson; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; all-optical regeneration; nonlinear optics; fiber optics; self-phase modulation; cross-phase modulation; ghost pulses; intrachannel four-wave mixing; timing jitter;

    Sammanfattning : The Kerr nonlinearity in optical fibres tends to generate signal distortion in dispersion-managed fibre-optic communication systems. Within a wavelength channel, the resulting intrachannel effects are timing jitter, i.e. LÄS MER

  3. 2. Investigations of Issues Relevant to the Application of Photon Echoes in Information Technology

    Författare :Ulf Elman; Atomfysik; []
    Nyckelord :NATURVETENSKAP; NATURAL SCIENCES; nonlinear optics; fibre amplifier; Boolean operation; rare earth metals; Atom- och molekylärfysik; Atomic and molecular physics; optical processing; photon echo; optical storage; Fysicumarkivet A:1998:Elman;

    Sammanfattning : Photon echoes have been studied both experimentally and theoretically, with the main part of the work centred around the concept of using photon echoes for all-optical data storage and processing. The four basic Boolean operators, AND, OR, NOT and XOR have been experimentally demonstrated using photon echoes. LÄS MER

  4. 3. Characterization of Phase-Sensitive and Phase-Insensitive Fiber Optical Parametric Amplifiers

    Författare :Carl Peter Lundström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY; Fiber optical parametric amplifier;

    Sammanfattning : The topic of this thesis is fiber optical parametric ampliers (FOPA). A unique feature of such ampliers is that they can operate in both phase-insensitive and phase-sensitive mode. The latter offers the potential of amplification without any added noise. LÄS MER

  5. 4. Phase-Sensitive Fiber Optic Parametric Amplifier and Their Applications in Optical Communications

    Författare :Carl Peter Lundström; Chalmers tekniska högskola; []
    Nyckelord :TEKNIK OCH TEKNOLOGIER; ENGINEERING AND TECHNOLOGY;

    Sammanfattning : This thesis deals with experimental and theoretical aspects of the phase-sensitive fiber optic parametric amplifier (FOPA) and their applications. FOPAs can be oper- ated as both phase-insensitive and phase-sensitive amplifiers (PSAs), with the latter requiring phase-locked input waves, which, until recently, has limited their practi- cal use. LÄS MER