Optical System Monitoring Based on Reflection Spectrum of Fiber Bragg Grating

Problem statement: This study presents fiber fault monitoring approaches for Fiber-to-the Home (FTTH) with a Passive Optical Network (PON). Current fiber fault monitoring approaches are difficult to be implemented due to its complexity and high loss as the amount of branches increase. Approach: A fiber fault monitoring scheme is proposed whereas Fiber Bragg Grating (FBG) is placed on each branch of the Optical Network Unit (ONU). The advantages of the scheme are that it is simple, low cost and efficient in monitoring fiber fault in ONU. FTTH based network design is simulated using Optisystemtem 8.0 in order to investigate the feasibility of the proposed scheme. Results: The reflection spectrum of Fiber Bragg Gratings (FBGs) with different spectrum shape, frequencies and amplitude is used to differentiate each optical network. The simulation result shows that the unique characteristic of fiber Bragg grating is able to distinguish each optical network for a 20 km Passive Optical Network (PON) system. Conclusion: This study suggests the implementation of Fiber Bragg Grating that is placed in each network instead of using Optical Time Domain Reflectometer (OTDR) for fiber fault monitoring.

[1]  J. Bauwelinck,et al.  A Novel Technique for Low-Cost Embedded Non-intrusive Fiber Monitoring of P2MP Optical Access Networks , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[2]  Mitsuhiro Tateda,et al.  Measuring the Individual Attentuation Distribution of Passive Branched Optical Networks , 1996 .

[3]  Francesco Caviglia,et al.  Optical Maintenance in PONs , 1999 .

[4]  R. Kashyap.  Fiber Bragg Gratings , 1999 .

[5]  Th. Pfeiffer,et al.  Embedded OTDR techniques for cost-efficient fibre monitoring in optical access networks , 2006, 2006 European Conference on Optical Communications.

[6]  明宏 広瀬,et al.  Fiber Bragg Gratingを用いた水中音波の検出 , 1998 .

[7]  Mohammad Syuhaimi Ab-Rahman,et al.  Design of ftth monitoring system based on zigbee wireless sensor network , 2011, 2011 IEEE Symposium on Business, Engineering and Industrial Applications (ISBEIA).

[8]  M. Wuilpart,et al.  Optical layer monitoring in Passive Optical Networks (PONs): A review , 2008, 2008 10th Anniversary International Conference on Transparent Optical Networks.

[9]  San-Liang Lee,et al.  Novel fault monitoring scheme for PON systems using wavelength sweeper and interferometric devices , 2008, OECC/ACOFT 2008 - Joint Conference of the Opto-Electronics and Communications Conference and the Australian Conference on Optical Fibre Technology.

[10]  J. Bauwelinck,et al.  Nonintrusive Fiber Monitoring of TDM Optical Networks , 2007, Journal of Lightwave Technology.

[11]  Kasmiran Jumari,et al.  Embedded ethernet microcontroller for optical monitoring , 2009, 2009 International Conference on Space Science and Communication.

[12]  Mohammad Syuhaimi Ab-Rahman,et al.  Linear Protection Schemes Analysis in Scattered Placement Fiber-To-The Home -Passive Optical Network Using Customer Access Protection Unit Solution , 2012 .

[13]  Daoyi Wang,et al.  FTTH remote fiber monitoring using optical wavelength domain reflectometry (OWDR) and wavelength coded tag (WCT) , 2006, 2006 Optical Fiber Communication Conference and the National Fiber Optic Engineers Conference.

[14]  S. Hann,et al.  Monitoring technique for a hybrid PS/WDM-PON by using a tunable OTDR and FBGs , 2006 .

[15]  Chang-Hee Lee,et al.  Fiber to the Home Using a PON Infrastructure , 2006, Journal of Lightwave Technology.

[16]  H. Ito,et al.  Fault Location for Branched Optical Fiber Networks based on OFDR Technique Using FSF Laser as Light Source , 2007, OFC/NFOEC 2007 - 2007 Conference on Optical Fiber Communication and the National Fiber Optic Engineers Conference.

[17]  Y. Koyamada,et al.  Fault location technique for in-service branched optical fiber networks , 1990, IEEE Photonics Technology Letters.

[18]  Y.C. Chung,et al.  Fault localization in WDM passive optical network by reusing downstream light sources , 2005, IEEE Photonics Technology Letters.

[19]  Chang-Soo Park,et al.  An optical surveillance technique based on cavity mode analysis of SL-RSOA for GPON , 2009 .

[20]  F. Effenberger,et al.  In-band optical frequency domain reflectometry in PONs , 2008, OFC/NFOEC 2008 - 2008 Conference on Optical Fiber Communication/National Fiber Optic Engineers Conference.

[21]  K. Tanaka,et al.  Measuring the individual attenuation distribution of passive branched optical networks , 1996, IEEE Photonics Technology Letters.