Theoretical analysis of optical fiber mode exciters constructed with alternate concatenation of step‐index and graded‐index fibers

Yahei Koyamada, Tsuneo Horiguchi, Masamitsu Tokuda, Naoya Uchida

Research output: Contribution to journalArticle

2 Citations (Scopus)

Abstract

Mode exciters which consist of alternate concatenation of step‐index (S) and graded‐index (G) fibers are used widely for the measurement of transmission characteristics (optical loss and baseband frequency response) of multimode fibers. This paper presents a theoretical analysis for the mode exciters based on geometrical ray optics approximation. The mode power distribution controlling effect of the exciters, excited mode power distribution in the test fiber, and accuracy and reproducibility of optical loss measurements are clarified theoretically. It is shown that optical loss measurements under steady‐state distribution can be done by using either SGS or GSG mode exciters which consist of either small core or low NA fibers.

Original languageEnglish
Pages (from-to)66-74
Number of pages9
JournalElectronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)
Volume68
Issue number3
DOIs
Publication statusPublished - 1985
Externally publishedYes

Fingerprint

Optical losses
Optical fibers
Fibers
Multimode fibers
Frequency response
Optics

ASJC Scopus subject areas

  • Computer Networks and Communications
  • Electrical and Electronic Engineering

Cite this

@article{a02a16a82ec145688a228370cb817599,
title = "Theoretical analysis of optical fiber mode exciters constructed with alternate concatenation of step‐index and graded‐index fibers",
abstract = "Mode exciters which consist of alternate concatenation of step‐index (S) and graded‐index (G) fibers are used widely for the measurement of transmission characteristics (optical loss and baseband frequency response) of multimode fibers. This paper presents a theoretical analysis for the mode exciters based on geometrical ray optics approximation. The mode power distribution controlling effect of the exciters, excited mode power distribution in the test fiber, and accuracy and reproducibility of optical loss measurements are clarified theoretically. It is shown that optical loss measurements under steady‐state distribution can be done by using either SGS or GSG mode exciters which consist of either small core or low NA fibers.",
author = "Yahei Koyamada and Tsuneo Horiguchi and Masamitsu Tokuda and Naoya Uchida",
year = "1985",
doi = "10.1002/ecja.4410680308",
language = "English",
volume = "68",
pages = "66--74",
journal = "Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)",
issn = "8756-6621",
publisher = "John Wiley and Sons Inc.",
number = "3",

}

TY - JOUR

T1 - Theoretical analysis of optical fiber mode exciters constructed with alternate concatenation of step‐index and graded‐index fibers

AU - Koyamada, Yahei

AU - Horiguchi, Tsuneo

AU - Tokuda, Masamitsu

AU - Uchida, Naoya

PY - 1985

Y1 - 1985

N2 - Mode exciters which consist of alternate concatenation of step‐index (S) and graded‐index (G) fibers are used widely for the measurement of transmission characteristics (optical loss and baseband frequency response) of multimode fibers. This paper presents a theoretical analysis for the mode exciters based on geometrical ray optics approximation. The mode power distribution controlling effect of the exciters, excited mode power distribution in the test fiber, and accuracy and reproducibility of optical loss measurements are clarified theoretically. It is shown that optical loss measurements under steady‐state distribution can be done by using either SGS or GSG mode exciters which consist of either small core or low NA fibers.

AB - Mode exciters which consist of alternate concatenation of step‐index (S) and graded‐index (G) fibers are used widely for the measurement of transmission characteristics (optical loss and baseband frequency response) of multimode fibers. This paper presents a theoretical analysis for the mode exciters based on geometrical ray optics approximation. The mode power distribution controlling effect of the exciters, excited mode power distribution in the test fiber, and accuracy and reproducibility of optical loss measurements are clarified theoretically. It is shown that optical loss measurements under steady‐state distribution can be done by using either SGS or GSG mode exciters which consist of either small core or low NA fibers.

UR - http://www.scopus.com/inward/record.url?scp=84941550615&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84941550615&partnerID=8YFLogxK

U2 - 10.1002/ecja.4410680308

DO - 10.1002/ecja.4410680308

M3 - Article

AN - SCOPUS:84941550615

VL - 68

SP - 66

EP - 74

JO - Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)

JF - Electronics and Communications in Japan, Part I: Communications (English translation of Denshi Tsushin Gakkai Ronbunshi)

SN - 8756-6621

IS - 3

ER -