In this paper, we describe a technique to smooth the Q-switched pulse output from the large core fibre by effectively reducing the degree of coherence of the laser beam before launch and thus reducing contrast in the speckle. Whilst developed for PIV, the technique is capable of general applicability.


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    Title :

    Speckle contrast reduction from a large core fibre delivering Q-switched pulses


    Contributors:
    Parry, J.P. (author) / Shephard, J.D. (author) / Jones, J.D.C. (author) / Hand, D.P. (author)


    Publication date :

    2005-01-01


    Size :

    904454 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English



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