Time analogue of the z-scan technique suitable to waveguides |
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Authors: | EJS Fonseca EA Gouveia JM Hickmann |
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Institution: | (1) Departamento de Fısica, Universidade Federal de Alagoas, Maceió AL 57072-970, Brazil, BR |
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Abstract: | We propose a new technique to perform measurements of nonlinearities in optical waveguides based on the variation of an optical
pulse chirp. This technique is analogous to the z-scan technique in the time domain. We analyze the new experimental method analytically and numerically, obtaining an useful
expression relating the nonlinearity with a peak-valley structure. Practical ways to implement the technique are discussed.
Received 13 March 2001 |
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Keywords: | PACS 42 65 -k Nonlinear optics – 42 65 Wi Nonlinear waveguides – 42 81 Cn Fiber testing and measurement of fiber parameters |
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