https://doi.org/10.1007/s100530170039
Time analogue of the z-scan technique suitable to waveguides
Departamento de Física, Universidade Federal de Alagoas, Maceió AL 57072-970, Brazil
Corresponding author: a hickmann@loqnl.ufal.br
Received:
13
March
2001
Published online: 15 October 2001
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.
PACS: 42.65.-k – Nonlinear optics / 42.65.Wi – Nonlinear waveguides / 42.81.Cn – Fiber testing and measurement of fiber parameters
© EDP Sciences, Società Italiana di Fisica, Springer-Verlag, 2001
