Infokommunikacionnye tehnologiiInfokommunikacionnye tehnologii2073-3909Povolzhskiy State University of Telecommunications and Informatics55795FIBER LIGHT-GUIDE CLADDING DEFECTS LOCALIZATION ON SHORT LENGTHOF OPTICAL FIBERBurdinV Aburdin@psati.ruDmitrievE Vnio@psati.ru1509201083343720122020Copyright © 2010, Burdin V.A., Dmitriev E.V.2010Physical simulation of optical fiber cladding defects and experimental investigation results are described in present paper. By this results it is confirmed that assumption about fiber light-guide cladding defects localization on short length of optical fiber by comparison polarization backscattering characteristic with sliding correlation test is correct. Samples of defects localization on less then 2 km optical fiber with less then 100 m error are represented.fiber light-guideoptical fibercladdingcorecrackbackscattering characteristicpolarization optical time domain reflectometerволоконный световодоптическое волокнооболочкасердцевинамикротрещинахарактеристика обратного рассеянияполяризационный импульсный оптический рефлектометр[Semjonov S.L., Glaeseman G.S., Clark D.A., Bubnov M.M. Fatigue behavior of silica fibers with different defects // SPIE Proceedings. V. 4215, 2001. - P. 2835.][Matthewson M. J. Environmental effects on fatigue and lifetime predictions for silica optical fibers // SPIE Proceedings. V. 4940, 2002. - P. 80-92.][Semjonov S.L. Concept of reliability of optical fibers // SPIE Proceedings. V. 4639, 2002. - P. 1-10.][Alasaarela I., Karioja P., Kopola H. Copmparison of distributed fiber optic sensing methods for location and quantity information measurements // Opt. Eng. V. 41(1), 2002. - P. 181-189.][Rogers A.J. Distributed optical-fiber sensors for measurement of pressure, strain and temperature // Phys.Rep. V. 169(2), 1988. - P. 99-143.][Rogers A.J. Polarization-optical time domain reflectometry: a technique for the measurement of field distributions // Appl. Opt. V. 20(6), 1981. -P. 1060-1074.][Galtarossa A., Menyuk C.R. Polarization mode dispersión. Springer, 2005. - 296 c.][Андреев В.А., Андреев Р.В., Бурдин А.В., Бурдин В.А. Способ идентификации поврежденного оптического волокна // Патент RU 2256161 C2. 2005, БИ № 19.]