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

Zhou, Kaiming, Simpson, G., Chen, Xianfeng F., Zhang, Lin and Bennion, Ian (2003). Two-dimensional optical power distribution of side-out-coupled radiation from tilted FBGs in multimode fibre. Electronics letters, 39 (8), pp. 651-653.

Abstract

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: Engineering & Applied Sciences > Electrical, Electronic & Power Engineering
Engineering & Applied 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
Published Date: 2003-04
Authors: Zhou, Kaiming
Simpson, G.
Chen, Xianfeng F.
Zhang, Lin
Bennion, Ian

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