Centralized Monitoring and Self-protected against Fiber Fault in FTTH Access Network

This paper presented a new approach for centralized monitoring and self-protected against fiber fault in fiber-to-the-home (FTTH) access network by using Smart Access Network Testing, Analyzing and Database (SANTAD). SANTAD will be installed with optical line terminal (OLT) at central office (CO) for in-service transmission surveillance and fiber fault localization within FTTH with point-to-multipoint (P2MP) configuration downwardly from CO towards customer residential locations based on the graphical user interface (GUI) processing capabilities of MATLAB software. SANTAD is able to detect any fiber fault as well as identify the failure location in the network system. SANTAD enable the status of each optical network unit (ONU) connected line is displayed onto one screen with capability to configure the attenuation and detect the failure simultaneously. The analysis results and information will be delivered to the field engineer for promptly actions, meanwhile the failure line will be diverted to protection line to ensure the traffic flow continuously. This approach has a bright prospect to improve the survivability and reliability as well as increase the efficiency and monitoring capabilities in FTTH.

Authors:

• Mohammad Syuhaimi Ab-Rahman
• Boonchuan Ng
• Kasmiran Jumari

Keywords:

• Fiber fault
• FTTH
• SANTAD
• transmission surveillance
• MATLAB.

References:

[1] C.H. Yeh, F.Y. Shih, G.K. Chang, and S. Chi, "Reliable tree-type
passive optical networks with self-restorable apparatus," Opt. Express,
vol. 16, pp. 4494-4498, 2008.
[2] L. Lee, S.B. Kang, D.S. Lim, H.K. Lee, and W.V. Sorin, "Fiber link loss
monitoring scheme in bidirectional WDM transmission using ASEinjected
FP-LD," IEEE Photon. Technol. Lett., vol. 18, no. 3, pp. 523-
525, 2006.
[3] G. Keiser, Optical Fiber Communication, 3rd ed., McGraw-Hill, New
York, USA, 2000.
[4] M. Wuilpart, A. Grillet, K. Yuksel, D. Gianone, G. Ravet, and P.
Megret, "Dynamics enhancement of OTDR-based monitoring systems
for passive optical networks," Proc. Symposium IEEE/LEOS Benelux
Chapter, Brussels, pp. 167-170, 2007.
[5] J. Prat. 2008. Optical networks: towards bandwidth manageability and
cost efficiency, [Online]. Available: http://www.e-photonone.
org/ephotonplus/servlet/Utils.MostrarFitxerPublic?fitxer=D_V
DA_3.pdf&pathRelatiu=E-Photon+One+%2B%2FPublic%2FPublic
+Deliverables%2F.
[6] T. Okada, 2008. Expert's forum - novel FTTH technology for optical
access networks, [Online]. Available: http://www.huawei.com/public
ations/view.do?cid=342&id=680&pid=61.
[7] C.K. Chan, F. Tong, L.K. Chen, K.P. Ho, and D. Lim, "Fiber-fault
identification for branched access networks using a wavelengthsweeping
monitoring source," IEEE Photon. Technol. Lett., vol. 11, no.
5, pp. 614-616, 1999.
[8] A.A.A. Bakar, M.Z. Jamaludin, F. Abdullah, M.H. Yaacob, M.A. Mahdi,
and M.K. Abdullah, "A new technique of real-time monitoring of fiber
optic cable networks transmission," Optics and Lasers in Engineering,
vol. 45, pp. 126-130, 2007.
[9] M.S.A. Rahman and B.C. Ng, "MATLAB-based graphical user interface
development for Centralized Failure Detection System (CFDS) in SCAN
Network," J. of Opt. Commun., vol. 29, no. 3, pp. 152-156, 2008.
[10] I. Sankawa, S.I. Furukawa, Y. Koyamada, and H. Izumita, "Fault
location technique for in-service branched optical fiber networks," IEEE
Photon. Technol. Lett., vol. 2, pp. 766-768, 1990.
[11] M.K. Barnoki and S.N. Jensen, "Fiber waveguides: a novel technique for
investigating attenuation characteristics," Appl. Opt., vol. 15, pp. 2112-
2115, 1976.
[12] D. King, W.B. Lyons, C. Flanagan, and E. Lewis, "Interpreting complex
data from a three-sensor multipoint optical fiber ethanol concentration
sensor system using artificial neural network pattern recognition," Meas.
Sci. Technol., vol. 15, pp. 1560-1567, 2004.
[13] D.N. Harres, "Built-in test for fiber optic networks enabled by OTDR,"
25th Digital Avionics Systems Conference, pp. 5A1-5A8, 2006.
[14] B. Chomycz, Fiber Optic Installation: a Practical Guide, McGraw-Hill,
New York, USA, 1996.
[15] Network Infrastructure Committee. 2007. FTTH infrastructure
components and deployment methods, [Online]. Available:
http://www.europeftthcouncil .com/, 2007.
[16] F. Caviglia and V.C.D. Biase, "Optical maintenance in PONs," 24th
European Conference on Optical Communication (ECOC-98), pp. 621-
625, 1998.
[17] A. Girad, FTTX PON Technology and Testing, EXFO Electro-Optical
Engineering Inc, Canada, 2006.
[18] EXFO, FTB-400 Universal Test System User Guide, EXFO Electro-
Optical Engineering Inc, Canada, 2006.