Two-dimensional optical power distribution of side-out-coupled radiation from tilted FBGs in multimode fibre


Two-dimensional optical power distribution of the out-coupled radiation from UV-inscribed tilted fibre Bragg gratings (TFBGs) in multimode fibre (MMF) has been side-detected with high spatial/spectral resolution, showing a near-identical radiation mode profile to that measured from the fibre-end detection method. A comparative investigation of the radiation characteristics of TFBGs fabricated in singlemode fibre (SMF) and MMF clearly indicates that the radiation out-coupling is stronger and spatially more confined in MMF. The unique spatial-to-spectral encoding property of the coupling mechanism offers potential application in low-cost WDM devices.

Divisions: College of Engineering & Physical Sciences > School of Computer Science and Digital Technologies > Electronics & Computer Engineering
College of Engineering & Physical Sciences
Uncontrolled Keywords: 2D optical power distribution, side-out-coupled radiation, tilted FBGs, multimode fibre, UV-inscribed FBGs, fibre Bragg gratings, high spatial resolution, high spectral resolution, radiation characteristics, spatial-to-spectral encoding property, low-cost WDM devices
Publication ISSN: 0013-5194
Last Modified: 23 Oct 2019 13:49
Date Deposited: 11 Apr 2014 07:07
Published Date: 2003-04
Authors: Zhou, Kaiming
Simpson, G.
Chen, Xianfeng F.
Zhang, Lin
Bennion, Ian


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