Applicability of DMD-measurements to new 10-Gigabit-Ethernet fibres

Author

Bunge, C.A. ; Kropp, J.R. ; Petermann, K.

Author_Institution

TU Berlin, Germany

Volume

3

fYear

2001

fDate

2001

Firstpage

362

Abstract

It is shown by simulations that all kinds of offset single-mode launch applied in differential mode delay measurements (DMD) can excite but only a small fraction of all guided modes, mainly modes of low azimuthal order. Furthermore it is demonstrated that vertical cavity surface emitting laser (VCSEL) launches featuring angular tilts, spatial offsets, or air gaps between connector and fibre end face also excite only a small group of modes. Finally it is shown that the mode groups excited by VCSEL launch are always a subset of the modes being examined by DMD measurements, and thus DMD measurements are applicable to the assessment of 10-Gigabit-Ethernet fibres.

Keywords

delays; light propagation; optical fibre LAN; optical fibre testing; surface emitting lasers; 10-Gigabit-Ethernet fibres; DMD measurements; VCSEL; air gaps; angular tilts; azimuthal order; differential mode delay measurements; guided modes; mode groups; multimode fibres; offset single-mode launch; propagation characteristics; simulations; spatial offsets; vertical cavity surface emitting laser; Air gaps; Ethernet networks; Fiber lasers; Laser excitation; Laser modes; Power distribution; Power measurement; Propagation delay; Quality assessment; Vertical cavity surface emitting lasers;

fLanguage

English

Publisher

ieee

Conference_Titel

Optical Communication, 2001. ECOC '01. 27th European Conference on

Print_ISBN

0-7803-6705-7

Type

conf

DOI

10.1109/ECOC.2001.989667

Filename

989667