Characterization of Mode Coupling in Few-Mode FBG With Selective Mode Excitation

Author

Ali, Muhammad M. ; Yongmin Jung ; Kok-Sing Lim ; Islam, Md R. ; Alam, Shaif-Ul ; Richardson, David J. ; Ahmad, Harith

Author_Institution

Photonics Res. Centre, Univ. of Malaya, Kuala Lumpur, Malaysia

Volume

27

Issue

16

fYear

2015

fDate

Aug.15, 15 2015

Firstpage

1713

Lastpage

1716

Abstract

We present the results on fabrication and the characterization of few-mode fiber Bragg gratings (FM-FBGs) inscribed in two mode and four mode step-index fibers. Under the conditions of selective input mode launching, coupling between specific modes of interest can be selectively excited and the self-coupling and cross-coupling properties at the associated resonant wavelengths can be clearly identified and verified by observing the reflected mode intensity profiles. Such FM-FBGs can potentially be used as reflective mode-converters for mode division multiplexed data transmission systems.

Keywords

Bragg gratings; optical communication equipment; optical fibre communication; optical fibre couplers; optical fibre fabrication; FM-FBG fabrication; cross-coupling properties; few-mode FBG; few-mode fiber Bragg gratings; four mode step-index fibers; mode coupling; mode division multiplexed data transmission systems; reflected mode intensity profiles; reflective mode-converters; selective input mode launching; selective mode excitation; self-coupling properties; two mode step-index fibers; Bragg gratings; Couplings; Optical fiber amplifiers; Optical fiber communication; Optical fiber couplers; Optical fiber devices; Reflection; Fiber Bragg grating; fiber Bragg grating; mode conversion; mode-coupling;

fLanguage

English

Journal_Title

Photonics Technology Letters, IEEE

Publisher

ieee

ISSN

1041-1135

Type

jour

DOI

10.1109/LPT.2015.2438177

Filename

7118656