RESEARCH OF PARAMETRES STABILITY OF AN OPTICAL FIBER OF PANDA TYPE UNDER EXTERNAL MECHANICAL AND TEMPERATURE INFLUENCES
- Authors: Kuzminykh Y.S1, Postnikov V.S1
- Affiliations:
- Perm National Research Polytechnic University
- Issue: Vol 16, No 4 (2014)
- Pages: 107-112
- Section: ARTICLES
- URL: https://ered.pstu.ru/index.php/mm/article/view/3256
- DOI: https://doi.org/10.15593/.v16i4.3256
- Cite item
Abstract
Work is devoted to research of influence of external mechanical and temperature factors on parametres stability of a optical fiber of PANDA type used in coherent communication systems and interferometric gauges. Researches were spent in the conditions of industrial experiment with use of a method of the parametric analysis and reflectometry. The four-factor model of the first order has been applied to the parametric analysis. In the capacity of optimisation parametres used criterion of ability to preserve polarisation in the time of passage of radiation longwise of optical fibre - extinction factor (h-parametre). By means of pulsed reflectometry has been investigated a signal attenuation in a fibre, which make it possible to consider size of an absolute tension of a fibre. By researches it is established that in the range of operational temperatures (0-40 °С) the temperature factor does not exert an appreciable impact on parametres of polarisation of radiation in a fibre. Researches of influence of length of a fibre, tension and diameter of the accepting coil on the extinction coefficient have shown that the most significant factors are diameter of the coil and length of a fibre. Also it is established that bending deformations in a fibre have great value and that are the prevailing factor of loss of power in a fibre. The increase in diameter of the accepting coil decrease a size of bending deformations. The analysis of reflectogram is show's that transition from one layer of spooling to another layer leads to abrupt change of parametres of dispersion of radiation. On the basis of results of researches are made recommendations about updating of technological process of rewind of an optical fibre.
About the authors
Ya. S Kuzminykh
Perm National Research Polytechnic University
V. S Postnikov
Perm National Research Polytechnic University
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