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Optics Letters

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  • Vol. 18, Iss. 20 — Oct. 15, 1993
  • pp: 1715–1717

Vector theory of diffraction by a single-mode fiber: application to mode-field diameter measurements

Matt Young and Ronald C. Wittmann  »View Author Affiliations


Optics Letters, Vol. 18, Issue 20, pp. 1715-1717 (1993)
http://dx.doi.org/10.1364/OL.18.001715


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Abstract

We derive a far-field diffraction integral by (vector) electromagnetic theory; the result differs from the (scalar) Rayleigh–Sommerfeld or Kirchhoff result in that it depends on polarization. For unpolarized light, we derive a factor ( 1 + cos 2 θ ) 1 / 2 / 2 that replaces the usual obliquity factor. Omitting this factor can cause an error of the same order as the measurement uncertainty in determining the mode-field diameter of a single-mode fiber from far-field data.

© 1993 Optical Society of America

History
Original Manuscript: June 7, 1993
Published: October 15, 1993

Citation
Matt Young and Ronald C. Wittmann, "Vector theory of diffraction by a single-mode fiber: application to mode-field diameter measurements," Opt. Lett. 18, 1715-1717 (1993)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-18-20-1715


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References

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  2. J. J. Stamnes, Waves in Focal Regions (Hilger, Bristol, UK, 1986), pp. 17–40.
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  8. B. Walkerthe COST 217 Group, in Technical Digest—Symposium on Optical Fiber Measurements, 1990, G. W. Day, D. L. Franzen, eds., Natl. Inst. Stand. Technol. Spec. Publ. 792, 11 (1990).
  9. M. Garnder, in Skeptical Inquirer (Spring1993), p. 261; C. Murphy, in The Atlantic (February1992), p. 18.

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