REMOVAL OF THE DEGENERACY IN MODES OF LENS-LIKE MEDIUM BY AN x**2 y**2 TERM IN THE INDEX DISTRIBUTION.

Kenichi Iga, Yasuo Kokubun, Kiyoshi Yokomori

Abstract

This paper considers an asymmetric medium which contains higher-order terms and presents a simplified analysis via the perturbation method and the results of the propagation constants, group velocities, and the perturbed modes. It is shown that the degeneracy is removed by the x**2y**2 terms and that the mode dispersion remains even if the ideal condition for undegenerate case (h//4**(**3**)/h//4**(**1**) equals 3) holds. This quantity is less than only 100 psec (g/k(0) equals 10** minus **3) per 1 km even if the maximum of degenerate modes (p plus q equals 1) is 10. In a completely symmetric lens-like medium, Hermite-Gaussian modes become degenerate and their group velocities coincide.

Original languageEnglish
Title of host publicationElectron Commun Jpn
Pages108-117
Number of pages10
Volume59
Edition10
StatePublished - 1976 Oct 1
Externally publishedYes

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ASJC Scopus subject areas

  • Engineering(all)

Cite this

Iga, K., Kokubun, Y., & Yokomori, K. (1976). REMOVAL OF THE DEGENERACY IN MODES OF LENS-LIKE MEDIUM BY AN x**2 y**2 TERM IN THE INDEX DISTRIBUTION. In Electron Commun Jpn. (10 ed., Vol. 59, pp. 108-117)

REMOVAL OF THE DEGENERACY IN MODES OF LENS-LIKE MEDIUM BY AN x**2 y**2 TERM IN THE INDEX DISTRIBUTION. / Iga, Kenichi; Kokubun, Yasuo; Yokomori, Kiyoshi.

Electron Commun Jpn. Vol. 59 10. ed. 1976. p. 108-117.

Research output: Chapter in Book/Report/Conference proceedingChapter

Iga, K, Kokubun, Y & Yokomori, K 1976, REMOVAL OF THE DEGENERACY IN MODES OF LENS-LIKE MEDIUM BY AN x**2 y**2 TERM IN THE INDEX DISTRIBUTION. in Electron Commun Jpn. 10 edn, vol. 59, pp. 108-117.
Iga K, Kokubun Y, Yokomori K. REMOVAL OF THE DEGENERACY IN MODES OF LENS-LIKE MEDIUM BY AN x**2 y**2 TERM IN THE INDEX DISTRIBUTION. In Electron Commun Jpn. 10 ed. Vol. 59. 1976. p. 108-117.

Iga, Kenichi; Kokubun, Yasuo; Yokomori, Kiyoshi / REMOVAL OF THE DEGENERACY IN MODES OF LENS-LIKE MEDIUM BY AN x**2 y**2 TERM IN THE INDEX DISTRIBUTION.

Electron Commun Jpn. Vol. 59 10. ed. 1976. p. 108-117.

Research output: Chapter in Book/Report/Conference proceedingChapter

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