An Optical Fiber Perimeter Guard System Using OTDRs 


Vol. 35,  No. 12, pp. 1836-1843, Dec.  2010


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  Abstract

The perimeter defense system was created and its characteristics were evaluated. It was designed to utilize the fiber sensing device, namely OTDR(Optical Time Domain Reflectometer) which has been used for the maintenance of the optical communication network. An OTDR was constituted by a pulse laser with the nature of 1310㎚, +15㏈m for the observation of 400 meter optical fence. The high-speed 32-bit processor(S3C2440) has applied to MPU(Main Processor Unit) which helps to improve the performance of OTDR algorithms. Consequently, the maximum error was 0.84 meter on the performance test of the 10㎞ monitoring and the pass criteria of ±1m satisfied in all the sections. The alarm delay time was under 3 sec after detecting the disorder. For the case of secondary trespassing after primary trespassing, the optical switch was installed in OTDR to monitor the secondary trespassing and to measure the multi-point detection. Therefore, this paper shows that the detections of secondary trespassing and multi-point is possible by means of optical switch.

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  Cite this article

[IEEE Style]

J. Chang, Y. Lee, D. Shin, S. Oh, J. Lee, J. Jung, "An Optical Fiber Perimeter Guard System Using OTDRs," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 12, pp. 1836-1843, 2010. DOI: .

[ACM Style]

Jin-Hyeon Chang, Yong-Cheol Lee, Dong-Ho Shin, Sang-Gun Oh, Jong-Youn Lee, and Jin-Ho Jung. 2010. An Optical Fiber Perimeter Guard System Using OTDRs. The Journal of Korean Institute of Communications and Information Sciences, 35, 12, (2010), 1836-1843. DOI: .

[KICS Style]

Jin-Hyeon Chang, Yong-Cheol Lee, Dong-Ho Shin, Sang-Gun Oh, Jong-Youn Lee, Jin-Ho Jung, "An Optical Fiber Perimeter Guard System Using OTDRs," The Journal of Korean Institute of Communications and Information Sciences, vol. 35, no. 12, pp. 1836-1843, 12. 2010.

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pISSN : 1226 - 4717
eISSN : 2287 - 3880