The combination of a tapered structure and a ridge-waveguide structure is a promising design for applications, which depend on both high power and high brightness. Using this combination, we achieved an optical output power of up to 4 W in continuous wave mode (cw) and 11.6 W in quasicw mode. The wall plug efficiency reaches 42% at a current of 4 A. The beam quality parameter M/sup 2/ remains nearly diffraction limited up to about 3.5 W with values below 1.3 resulting in an improved brightness of more than 260 MW/(cm/sup 2/sr).


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    Title :

    Improved brightness using tapered diode lasers


    Contributors:
    Kelemen, M.T. (author) / Weber, J. (author) / Mikulla, M. (author) / Weimann, G. (author)


    Publication date :

    2003-01-01


    Size :

    75743 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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