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    An ytterbium-doped fiber laser at 1.1 um

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    ChaboyerZ2012m-1b.pdf (3.579Mb)

    Date

    2013-02-12

    Author

    Chaboyer, Zachary Jordan

    Degree

    M.Sc.

    Discipline

    Physics

    Subject

    Lasers
    Optical fibers
    Laser technology
    Fiber lasers
    Ytterbium-doped fiber laser

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    Abstract

    A pulsed ytterbium-doped fiber laser is proposed and developed. A length of samarium-doped fiber was inserted into the laser cavity to induce passive Q-switching. The laser oscillated in the continuous wave, Q-switched mode-locked or Q-switched regime depending on adjustment of the intracavity polarization controller and the pump power. Q-switched pulses with a pulse energy of ~7.5 nJ and duration of ~70 ns were obtained at a pump power of ~1500 mW, corresponding to a peak output power of ~106 mW at an average power of 2 mW. The low output power was attributed to the low coupling efficiency of pump radiation into the cavity and the high cavity losses. All results were obtained at room temperature.

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    http://knowledgecommons.lakeheadu.ca/handle/2453/441

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    • Electronic Theses and Dissertations from 2009

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