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Optimisation of a graded-index fibre over a wavelength range

Optimisation of a graded-index fibre over a wavelength range

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© The Institution of Electrical Engineers
Published

The operation of graded-index fibres can be optimised in the neighbourhood of some wavelength whenever two dopants are available. Under the assumption that the index is a linear function of the dopant concentrations, a class of relations between dopants is found, which is related to that given by Olshansky.4 The case of a fibre doped with germanium and fluorine is treated.

Inspec keywords: optical waveguide theory; channel capacity; optical fibres; optimisation

Other keywords: optimisation over wavelength range; optical fibre theory; two dopant fibres; optical fibres; graded-index fibre; transmission capacity optimisation; dopant concentrations; multimode fibres

Subjects: Waveguide and cavity theory; Information theory; Fibre optics; Optimisation techniques

References

    1. 1)
      • R. Olshansky , D.B. Keck . Pulse broadening in graded-index optical fibers. Appl. Opt. , 483 - 491
    2. 2)
      • I.P. Kaminow , H.M. Presby . Profile synthesis in multicomponent glass optical fibers. Appl. Opt. , 108 - 112
    3. 3)
      • E.A.J. Marcatili . Modal dispersion in optical fibers with arbitrary numerical aperture and profile dispersion. Bell Syst. Tech. J.
    4. 4)
      • L.S. Pontriagin . (1967) , A course in ordinary differential equations.
    5. 5)
      • J. Arnaud . Optimum profiles for dispersive multimode fibers. Electron. Lett. , 25 , 654 - 655
    6. 6)
      • R. Olshansky . Multiple-α index profiles. Appl. Opt. , 683 - 689
    7. 7)
      • J.W. Fleming . Material dispersion in lightguide glasses. Electron. Lett. , 11 , 326 - 328
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