The new class of diode pumped alkali vapor lasers (DPALs) offers high efficiency cw laser beams at wavelengths which efficiently couple to photovoltaic (PV) cells: silicon cells at 895 nm (cesium), and GaAs cells at 795 nm (rubidium) and at 770 nm (potassium). DPAL electrical efficiencies of 25–30% are projected, enabling PV cell efficiencies ∼40% (Si) and ∼60% (GaAs). Near‐diffraction‐limited DPAL device power scaling into the multi‐kilowatt regime from a single aperture is projected. The potential application to power beaming propulsion to raise satellites from LEO to Geo is discussed.


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    DPAL: A new class of lasers for cw power beaming at ideal photovoltaic cell wavelengths


    Contributors:

    Conference:

    BEAMED ENERGY PROPULSION: Second International Symposium on Beamed Energy Propulsion ; 2003 ; Sendai (JAPAN)


    Published in:

    AIP Conference Proceedings ; 702 , 1 ; 367-377


    Publication date :

    2004-03-30


    Size :

    11 pages





    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



    DPAL: A New Class of Lasers for CW Power Beaming at Ideal Photovoltaic Cell Wavelengths

    Krupke, W. F. / Beach, R. J. / Payne, S. A. et al. | British Library Conference Proceedings | 2004


    Nuclear Pumped Lasers for Space Power Beaming

    Petra, M. / Miley, G. H. / University of New Mexico; School of Engineering; Institute for Space and Nuclear Power Studies | British Library Conference Proceedings | 1998


    DPAL: a new class of CW near-infrared high-power diode-pumped alkali (vapor) lasers (Invited Paper) [5334-20]

    Krupke, W. F. / Beach, R. J. / Kanz, V. K. et al. | British Library Conference Proceedings | 2004


    Nuclear Pumped Lasers for space power beaming

    Petra, M. / Miley, G. H. | American Institute of Physics | 1998


    High-power diode lasers boost power-beaming competition

    Treusch, G. / Koenning, T. / Shelef, B. | British Library Online Contents | 2008