Canning, John and Bandyopadhyay, Somnath and Stevenson, Michael and Biswas, Palas and Fenton, Jacob and Aslund, Mattias (2009) Regenerated gratings. Journal of the European Optical Society-Rapid Publications, 4. Article No.-09052. ISSN 1990-2573

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Abstract

Strong regenerated gratings with a maximum grating strength exceeding (40-50) dB are fabricated inside an optical fibre by bulk macro thermal processing similar to 900 degrees C using a UV-laser seeded Bragg grating. Further annealing between 1000 degrees C and 1100 degrees C leads to a stabilised grating similar to 18 dB in strength. This suffers no further degradation at 1100 degrees C for the period monitored, over 4 hours. The potential resolution of this process is demonstrated by regenerating two complex profiles. Phase information is retained between seed and regenerated structures. This opens the way for nano-engineering of materials using thermal processing and seed templates. [DOI: 10.2971/jeos.2009.09052]

Item Type:	Article
Uncontrolled Keywords:	Regeneration; Regenerated gratings; Crystallization; Gratings; Sensors; Bragg grating
Subjects:	Processing Science
Divisions:	Fiber Optics and Photonics
Depositing User:	Ashok K Podder
Date Deposited:	22 Feb 2012 05:35
Last Modified:	05 Mar 2012 11:49
URI:	http://cgcri.csircentral.net/id/eprint/980

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