Pandian, C. ; Sosamma, S. ; Kasinathan, M. ; Babu Rao, C. ; Murali, N. ; Jayakumar, T. ; Baldev Raj, ; Saxena, Manoj Kumar ; Raju, S. D. V. S. J. ; Sharma, Rakesh ; Kher, Sanjay (2009) Identification of a dormant thermally-stimulated defect in an optical fibre using a Raman sensor Insight, 51 (10). pp. 568-569. ISSN 1354-2575
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Official URL: http://www.atypon-link.com/BINT/doi/abs/10.1784/in...
Related URL: http://dx.doi.org/10.1784/insi.2009.51.10.568
Abstract
Various kinds of defects may be present in optical fibres. These defects arise at various stages of fibre sensor development such as preform fabrication, fibre drawing and fibre laying. The defects can be due to the presence of dopants, OH ions, residual stresses and micro cracks developed at different stages of fibre fabrication. We present a case study on observation of a defect, which is dormant at ambient temperature and manifests its presence at higher temperature. In this paper, we bring out the details of detection of this defect in a 62.5 μm/125 μm polyamide coated fibre using a Raman scattering-based distributed temperature sensor.
| Item Type: | Article |
|---|---|
| Source: | Copyright of this article belongs to British Institute of Non-Destructive Testing. |
| Keywords: | Optical Fibre Raman Sensor; Dormant Defects; High Temperature |
| ID Code: | 40663 |
| Deposited On: | 24 May 2011 11:34 |
| Last Modified: | 24 May 2011 11:34 |
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