Title :
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
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;
Journal_Title :
Photonics Technology Letters, IEEE
DOI :
10.1109/LPT.2015.2438177
