Issue |
J. Eur. Opt. Soc.-Rapid Publ.
Volume 4, 2009
|
|
---|---|---|
Article Number | 09052 | |
Number of page(s) | 7 | |
DOI | https://doi.org/10.2971/jeos.2009.09052 | |
Published online | 22 December 2009 |
Regular papers
Regenerated gratings
1
Interdisciplinary Photonics Laboratories (iPL), School of Chemistry, University of Sydney, Australia
2
Fibre Optics Laboratory, Central Glass and Ceramic Research Institute (CGCRI), Council of Scientific & Industrial Research, Kolkata - 700032, India
Received:
31
August
2009
Strong regenerated gratings with a maximum grating strength exceeding (40–50) dB are fabricated inside an optical fibre by bulk macro thermal processing ∼ 900°C using a UV-laser seeded Bragg grating. Further annealing between 1000°C and 1100°C leads to a stabilised grating ∼ 18 dB in strength. This suffers no further degradation at 1100°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.
Key words: regeneration / regenerated gratings / crystallization / gratings / sensors / Bragg grating
© The Author(s) 2009. All rights reserved.
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