Ring cavity lasers employ an Er doped or a semiconductor gain medium including a wavelength selective element for tuning a lasing wavelength. For a wavelength tuner, a tunable optical filter can be realized using a rotatable grating, Fabry-Perot cavity or an acousto-optic element. In the paper, we demonstrate the fiber ring laser tuned by controlling polarization states along the birefringent optical fiber loop. The ring laser consists of a semiconductor optical amplifier, a polarization controller combined with a rotatable intra-cavity polarizer for a wavelength selective element, and a 9:1 coupler. The ring also includes a polarization independent in-line optical isolator for providing unidirectional operation and an attenuator to adjust a loop loss.


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    Titel :

    Investigation of polarization tuning mechanism in fiber ring cavity laser


    Beteiligte:
    Ik-sang Kim, (Autor:in) / Jee-Hyun Lee, (Autor:in) / Chang-Bong Kim, (Autor:in) / Chang-Joon Chae, (Autor:in) / Shin-Ho Choi, (Autor:in)


    Erscheinungsdatum :

    1999-01-01


    Format / Umfang :

    140873 byte




    Medientyp :

    Aufsatz (Konferenz)


    Format :

    Elektronische Ressource


    Sprache :

    Englisch



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