Power tapping function in near infra-red region based on 45° tilted fiber gratings


We report an efficient power tapping device working in near infra-red (800 nm) wavelength region based on UV-in- scribed 45° tilted fiber grating (45°-TFG) structure. Five 45°-TFGs were UV-inscribed in hydrogenated PS750 fiber using a custom-designed phase mask with different grating lengths of 3 mm, 5 mm, 9 mm, 12 mm and 15 mm, showing polarization dependent losses (PDLs) of 1 dB, 3 dB, 7 dB, 10 dB and 13 dB, respectively. The power side-tapping efficiency is clearly depending on the grating strength. It has been identified that the power tapping efficiency increases with the grating strength and deceases along the grating length. The side-tapped power profile has also been examined in azimuthal direction, showing a near-Gaussian distribution. These experimental results clearly demonstrated that 45°- TFGs may be used as in-fiber power tapping devices for applications requiring in-line signal monitoring.

Publication DOI: https://doi.org/10.4236/opj.2013.32026
Divisions: College of Engineering & Physical Sciences > Aston Institute of Photonics Technology (AIPT)
Additional Information: Copyright © 2013 Adedotun Adebayo et al. This is an open access article distributed under the Creative Commons Attribution Li-cense, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Funding: EPSRC CASE studentship
Uncontrolled Keywords: power tapping,tilted fiber grating,polarization dependent loss,in-fiber polarizer
Publication ISSN: 2160-889X
Last Modified: 18 Apr 2024 07:10
Date Deposited: 27 Apr 2015 14:25
Full Text Link: http://www.scir ... 32#.VT4-wfAtXRs
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PURE Output Type: Article
Published Date: 2013-06
Authors: Adebayo, Adedotun
Yan, Zhijun
Zhang, Lin (ORCID Profile 0000-0002-1691-5577)
Fu, Hongyan
Robinson, David



Version: Published Version

License: Creative Commons Attribution

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