Simple characterisation factor for practical single-mode fibres

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© The Institution of Electrical Engineers
Published 21/07/2012

Abstract

The spot size of the HE11 mode in a practical single-mode fibre mainly depends on the numerical aperture and not on the normalised frequency. An alternative definition of spot size in terms of a matching Gaussian beam is much simpler to use.

Inspec keywords: optical fibres

Other keywords: characterisation factor; matching Gaussian beam; single mode fibre; spot size; HE11 mode

Subjects: Fibre optics; Fibre optics and fibre waveguides

References

    1. 1)
      • Matsumura, H.: `Excitation and coupling efficiencies in a single-mode fibre', ESU Report, August 1976
    2. 2)
      • Gambling, W.A., Matsumura, H.: `Propagation in radially-inhomogeneous single-mode fibre', Opt. & Quantum Electron.
    3. 3)
      • Matsumura, H.: `Jointing loss in single-mode fibres', ESU Report, July 1976
    4. 4)
    5. 5)
      • Snyder, A.: `Asymptotic expressions for eigenfunctions eigenvalues of a dielectric or optical waveguide', IEEE Trans., 1969, p. 1138-1144
    6. 6)
      • Marcuse, D.: `Loss analysis of single-mode fiber splices', Bell Syst. Tech. J., 1977, 56, p. 703-718
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