Canning, J and Bandyopadhyay, Somnath and Stevenson, M and Biswas, Palas and Fenton, J and Chakraborty, Riya and Aslund, M (2009) Thermal preparation of highly stable glass periodic changes with nano-scale resolution using a laser-inscribed hydrogen loaded seed template. In: Conference Proceedings - Lasers and Electro-Optics Society Annual Meeting-LEOS, 4 - 8 October, 2009, Belek-Antalya.

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Strong regenerated gratings with a maximum grating strength exceeding (40-50) dB are fabricated inside an optical fibre by bulk macro thermal processing ~900degC using a UV-laser seeded Bragg grating. Further annealing between 1000 and 1100degC leads to a stabilised grating ~18 dB in strength. This suffers no further degradation at 1100degC for the period monitored, over 4 hrs. To determine the potential resolution of this process, two regenerated complex profiles with no phase difference between seed and processed structures is reported. This opens the way for nano-engineering of materials using thermal processing and seed templates.

Item Type: Conference or Workshop Item (Paper)
Additional Information: Conference of 2009 IEEE LEOS Annual Meeting Conference, LEOS '09
Uncontrolled Keywords: Complex profiles; Grating strength; Nano scale; Nano-engineering; NO phase; Optical fibre; Regenerated grating; Thermal processing, Optical fibers; Rapid thermal annealing, Seed
Subjects: Processing Science
Divisions: Fiber Optics and Photonics
Depositing User: Bidhan Chaudhuri
Date Deposited: 21 Feb 2013 08:16
Last Modified: 21 Feb 2013 08:16

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