Vector theory of diffraction by a single-mode fiber: application to mode-field diameter measurements.
Opt Lett
; 18(20): 1715-7, 1993 Oct 15.
Article
en En
| MEDLINE
| ID: mdl-19823494
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) theta)((1/2))/ radical2 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.
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01-internacional
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MEDLINE
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En
Revista:
Opt Lett
Año:
1993
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Article
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Estados Unidos