The Theoretical and Experimental Study of Mode-Coupled Multimode <I>W</I>-Fiber Based on Scattering Matrix Method

Hiroshi KAJIOKA

The Theoretical and Experimental Study of Mode-Coupled Multimode W-Fiber Based on Scattering Matrix Method

Hiroshi KAJIOKA

Full Text Views

0

Cite this

Summary :

This paper describes an analytical consideration for mode-coupled multimode optical fibers. First in this paper a novel theory for analysing the baseband transfer function of mode-coupled multi-mode fiber is briefly described. This theory is based on Scattering Matrix method and makes it possible to analyse the baseband transfer function for arbitrary mode dispersion, attenuation, coupling coefficient and excitation condition. Second the results of the simulation based on this theory is compared with the experimental study of the transmission characteristics of multimode W-type fibers with various numerical apertures. This theoretical and experimental approach leads to the necessity of the introduction of the selection rule or the restriction of the maximum difference of the wave constants of the coupled modes. It is shown that coupling intensity and selection rule of mode coupling dominate the transmission characteristics. As for multimode W-Fiber, almost all transmission characteristics such as the transmission loss and bandwidth vs. the intermediate layer width, fiber length and the excitation condition can be analysed by introducing suitable selection rule and coupling intensity. From the view point of the optical fiber transmission system design up to about ten kilometers, it may become convenient that the only two factors: selection rule and coupling intensity are the design parameters. Finally the heuristic fact that multimode W-fiber has smaller microbending loss than singly clad step index fiber on the basis of the same dispersion is proved theoretically.

Publication: IEICE TRANSACTIONS on transactions Vol.E63-E No.6 pp.414-420

Publication Date: 1980/06/25

Publicized

Online ISSN

DOI

Type of Manuscript: PAPER

Category: Optical and Quantum Electronics

Authors

Hiroshi KAJIOKA

Keyword

Cite this

Copy

Hiroshi KAJIOKA, "The Theoretical and Experimental Study of Mode-Coupled Multimode W-Fiber Based on Scattering Matrix Method" in IEICE TRANSACTIONS on transactions, vol. E63-E, no. 6, pp. 414-420, June 1980, doi: .
Abstract: This paper describes an analytical consideration for mode-coupled multimode optical fibers. First in this paper a novel theory for analysing the baseband transfer function of mode-coupled multi-mode fiber is briefly described. This theory is based on Scattering Matrix method and makes it possible to analyse the baseband transfer function for arbitrary mode dispersion, attenuation, coupling coefficient and excitation condition. Second the results of the simulation based on this theory is compared with the experimental study of the transmission characteristics of multimode W-type fibers with various numerical apertures. This theoretical and experimental approach leads to the necessity of the introduction of the selection rule or the restriction of the maximum difference of the wave constants of the coupled modes. It is shown that coupling intensity and selection rule of mode coupling dominate the transmission characteristics. As for multimode W-Fiber, almost all transmission characteristics such as the transmission loss and bandwidth vs. the intermediate layer width, fiber length and the excitation condition can be analysed by introducing suitable selection rule and coupling intensity. From the view point of the optical fiber transmission system design up to about ten kilometers, it may become convenient that the only two factors: selection rule and coupling intensity are the design parameters. Finally the heuristic fact that multimode W-fiber has smaller microbending loss than singly clad step index fiber on the basis of the same dispersion is proved theoretically.
URL: https://global.ieice.org/en_transactions/transactions/10.1587/e63-e_6_414/_p

Copy

@ARTICLE{e63-e_6_414,
author={Hiroshi KAJIOKA, },
journal={IEICE TRANSACTIONS on transactions},
title={The Theoretical and Experimental Study of Mode-Coupled Multimode W-Fiber Based on Scattering Matrix Method},
year={1980},
volume={E63-E},
number={6},
pages={414-420},
abstract={This paper describes an analytical consideration for mode-coupled multimode optical fibers. First in this paper a novel theory for analysing the baseband transfer function of mode-coupled multi-mode fiber is briefly described. This theory is based on Scattering Matrix method and makes it possible to analyse the baseband transfer function for arbitrary mode dispersion, attenuation, coupling coefficient and excitation condition. Second the results of the simulation based on this theory is compared with the experimental study of the transmission characteristics of multimode W-type fibers with various numerical apertures. This theoretical and experimental approach leads to the necessity of the introduction of the selection rule or the restriction of the maximum difference of the wave constants of the coupled modes. It is shown that coupling intensity and selection rule of mode coupling dominate the transmission characteristics. As for multimode W-Fiber, almost all transmission characteristics such as the transmission loss and bandwidth vs. the intermediate layer width, fiber length and the excitation condition can be analysed by introducing suitable selection rule and coupling intensity. From the view point of the optical fiber transmission system design up to about ten kilometers, it may become convenient that the only two factors: selection rule and coupling intensity are the design parameters. Finally the heuristic fact that multimode W-fiber has smaller microbending loss than singly clad step index fiber on the basis of the same dispersion is proved theoretically.},
keywords={},
doi={},
ISSN={},
month={June},}

Copy

TY - JOUR
TI - The Theoretical and Experimental Study of Mode-Coupled Multimode W-Fiber Based on Scattering Matrix Method
T2 - IEICE TRANSACTIONS on transactions
SP - 414
EP - 420
AU - Hiroshi KAJIOKA
PY - 1980
DO -
JO - IEICE TRANSACTIONS on transactions
SN -
VL - E63-E
IS - 6
JA - IEICE TRANSACTIONS on transactions
Y1 - June 1980
AB - This paper describes an analytical consideration for mode-coupled multimode optical fibers. First in this paper a novel theory for analysing the baseband transfer function of mode-coupled multi-mode fiber is briefly described. This theory is based on Scattering Matrix method and makes it possible to analyse the baseband transfer function for arbitrary mode dispersion, attenuation, coupling coefficient and excitation condition. Second the results of the simulation based on this theory is compared with the experimental study of the transmission characteristics of multimode W-type fibers with various numerical apertures. This theoretical and experimental approach leads to the necessity of the introduction of the selection rule or the restriction of the maximum difference of the wave constants of the coupled modes. It is shown that coupling intensity and selection rule of mode coupling dominate the transmission characteristics. As for multimode W-Fiber, almost all transmission characteristics such as the transmission loss and bandwidth vs. the intermediate layer width, fiber length and the excitation condition can be analysed by introducing suitable selection rule and coupling intensity. From the view point of the optical fiber transmission system design up to about ten kilometers, it may become convenient that the only two factors: selection rule and coupling intensity are the design parameters. Finally the heuristic fact that multimode W-fiber has smaller microbending loss than singly clad step index fiber on the basis of the same dispersion is proved theoretically.
ER -