Using photorefractive beam coupling we demonstrate that the induced grating autocorrelation (IGA) technique is sensitive to the chirp and self-phase modulation (SPM) of an ultrashort optical pulse. In this technique, an IGA trace is produced by varying the delay between the two ultrashort excitation pulses that form a photorefractive grating and plotting the diffracted intensity of the probe pulse versus relative delay. From a series of IGA traces and numerical fits we obtain an average value of the SPM strength per watt in a silica fiber, from which we calculate a value for the nonlinear refractive index.<>


    Access

    Check access

    Check availability in my library

    Order at Subito €


    Export, share and cite



    Title :

    Induced grating autocorrelation measurement of the nonlinear refractive index of silica fiber


    Contributors:
    Johnson, A.M. (author) / Tokuda, K.L. (author) / Levine, A.M. (author) / Ozizmir, E. (author) / Trebino, R. (author) / Hayden, C.C. (author)

    Published in:

    Publication date :

    1993-01-01


    Size :

    145667 byte




    Type of media :

    Conference paper


    Type of material :

    Electronic Resource


    Language :

    English