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  • Quasi-monolithic ring resonator for efficient frequency doubling of an external cavity diode laser

    Author(s)
    Skoczowsky, D.
    Jechow, A.
    Stürmer, H.
    Poÿner, T.
    Sacher, J.
    Menzel, R.
    Griffith University Author(s)
    Jechow, Andreas
    Year published
    2010
    Metadata
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    Abstract
    A quasi-monolithic second-harmonic-generation ring resonator assembled with miniaturized components is presented. The ring contains a 10-mm-long bulk periodically poled lithium niobate crystal for second-harmonic generation, four plane mirrors and two gradient-index lenses. All parts are mounted on a glass substrate with an overall size of 19.5 mm׸.5 mm״ mm. As pump source a broad-area laser diode operated in an external resonator with Littrow arrangement is utilized. This external cavity diode laser provides near diffraction limited, narrow-bandwidth emission with an optical output power of 450 mW at a wavelength of 976 nm. ...
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    A quasi-monolithic second-harmonic-generation ring resonator assembled with miniaturized components is presented. The ring contains a 10-mm-long bulk periodically poled lithium niobate crystal for second-harmonic generation, four plane mirrors and two gradient-index lenses. All parts are mounted on a glass substrate with an overall size of 19.5 mm׸.5 mm״ mm. As pump source a broad-area laser diode operated in an external resonator with Littrow arrangement is utilized. This external cavity diode laser provides near diffraction limited, narrow-bandwidth emission with an optical output power of 450 mW at a wavelength of 976 nm. Locking of the diode laser emission to the resonance frequency of the ring cavity was achieved by an optical self-injection locking technique. With this setup more than 126 mW of diffraction-limited blue light at 488 nm could be generated. The opto-optical conversion efficiency was 28% and a wall plug efficiency better than 5.5% could be achieved.
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    Journal Title
    Applied Physics B
    Volume
    98
    Issue
    4
    DOI
    https://doi.org/10.1007/s00340-009-3802-7
    Subject
    Nonlinear Optics and Spectroscopy
    Lasers and Quantum Electronics
    Optical Physics
    Electrical and Electronic Engineering
    Mechanical Engineering
    Publication URI
    http://hdl.handle.net/10072/36534
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    • Journal articles

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