Title :
Streak camera study of ultrashort pulse propagation in a weakly multimode optical fibre
Author :
Smith, K. ; Sibbett, W. ; Langford, N.
Author_Institution :
Imperial College, Photonics Group, Blackett Laboratory, London, UK
Abstract :
A mode-locked dye laser in conjunction with a synchronously operating streak camera has been used to study ultrashort light pulse propagation in a weakly multimode optical fibre. Measurements of the intermodal temporal dispersion allowed the effective core radius a, the refractive index difference ¿ and the cutoff wavelengths of the LP21 and LP11 mode groups to be determined. The LP21 cutoff wavelength was experimentally verified and the temporal dispersion of the LP01 and LP11 mode groups investigated as a function of the fibre length.
Keywords :
guided light propagation; optical dispersion; optical fibres; refractive index measurement; streak photography; LP mode groups; cutoff wavelengths; effective core radius; fibre length; intermodal temporal dispersion; mode-locked dye laser; refractive index difference; streak camera studies; synchronously operating streak camera; ultrashort pulse propagation; weakly multimode optical fibre;
Journal_Title :
Electronics Letters
DOI :
10.1049/el:19850757
