Call for Paper - March 2023 Edition
IJCA solicits original research papers for the March 2023 Edition. Last date of manuscript submission is February 20, 2023. Read More

A Quick Pre-Deployment Fibre Optic Link Design Methodology based on Q-factor in a Digital Eye

International Journal of Computer Applications
© 2014 by IJCA Journal
Volume 90 - Number 13
Year of Publication: 2014
James Ntaganda

James Ntaganda. Article: A Quick Pre-Deployment Fibre Optic Link Design Methodology based on Q-factor in a Digital Eye. International Journal of Computer Applications 90(13):8-16, March 2014. Full text available. BibTeX

	author = {James Ntaganda},
	title = {Article: A Quick Pre-Deployment Fibre Optic Link Design Methodology based on Q-factor in a Digital Eye},
	journal = {International Journal of Computer Applications},
	year = {2014},
	volume = {90},
	number = {13},
	pages = {8-16},
	month = {March},
	note = {Full text available}


Fibre optic cables have become the main driving force behind high data throughput infrastructure. In modern wideband communication systems, they are deployed as backbone cables in many long haul links as well as links to clients (Fibre to home). Several Gigabits per second data rates have become common. Field engineers need to have a thorough knowledge of physics behind any physical component used to accomplish fibre optic cable deployment tasks. To investigate different phenomena in such fibre optic links design, a 10 Km repeaterless backbone link, arbitrarily between an onshore control station and an offshore configuration terminal, is designed. Design process is done based on specifications of products already on market. Power and bandwidth constraints are taken into account as major causes of errors upon signal reception. The link budget is done by combining different fibre optic link design approaches from a number of sources. Precise and summarised tables for quick power and bandwidth budgeting process are depicted. Design simulation is done by Optisystem 8. 0 simulation software, a product of optiwave Inc. The relationship between Quality factor (Q-factor) and BER (Bit Error Rates), their implications on received signal and how both are affected by different physical phenomena in optical communication systems is illustrated. Finally, quick design tables are drawn and graphs for design safety margin that conforms to ITU recommendations are plotted. The same tables can be extended and or modified to be customised to designer's target.


  • R. N. Chiou, 2011. Bus FTTH Networks, Advanced Communication Technology (ICACT) International Conference.
  • Chuan N. B, A Premad . A, Et al. 2010 Optical Power Budget and Cost Estimation for Intelligent Fiber-To-the-Home (i-FTTH), IEEE Conference Publications.
  • Jaehyoung. P, Geun y. k, Et al, 2008. FTTH deployment status & strategy in Korea , IEEE GLOBECOM
  • Arsad. N. , Mastang, B. B. 2007 . Impact of Fiber To The Home (FTTH) , IET Optoelectron
  • Abdollahi S. R. , Al-Raweshidy, Et al. 2010 , ALL photonic analogue to digital and digital to analogue conversion techniques , IEEE Conference Publications.
  • Yifeng. S, Tiefeng . X, Et al. 2011 Characteristics Analysis of Millimeter Wave Signals Produced with Optical Carrier Suppression in ROF Systems, Electronics, Communications and Control (ICECC)
  • Edward H. Sargent . 2004 Towards CMOS-Compatible, Solution-Processed Quantum Dot Nanocrystal Optical Sources, , IEEE International Conference
  • University of California Los Angles, 2004. fibre optic cable attenuation windows computer science department
  • Jerzy . D and Anthony. G, 2013 Computationally Efficient Solution of Snell's Law of Refraction, IEEE Transactions on Ultrasonics
  • C. H. Kwok, S. H. Lee, K. K. Chow and C. Lin Photonic crystal fibre based all-optical modulation format conversions between NRZ and RZ with hybrid clock recovery from a PRZ signal
  • Thomas F. D, Steven M. S. 2011, Continuous Phase Modulation for Fiber-Optic Links, journal of light wave technology.
  • Neville Hazell, 2006 Technological Infrastructure for Subsea Observatories Alcatel–Lucent Submarine Networks
  • Perry, J. , W. 2000. The future of fiber optics in the offshore oil Industry (A review of the subsea applications of optical fiber). North Williamson
  • Perry, W. , 2001. Optical fiber and Connectors: Optical and future subsea. Undersea technology, Florida.
  • Butler R. A. , 2009. Optical fiber and Radio communications lectures. School of Engineering, Robert Gordon University.
  • Charan, L. , 2002. Tutorial 15-How to interpret an eye diagram.
  • Goff D. R. , 2002. Fiber optic reference guide. 3rd Ed. Amsterdam: Focal press.
  • David, B and Edwin, W. , 2003. Practical fiber optics. Oxford, Newnes.
  • PERRY, J. , W. 2000. The future of fiber optics in the offshore oil Industry (A review of the subsea applications of optical fiber). North Williamson
  • Howard. P, Perry. W and Gary. C, 2006. Subsea to shore –challenges and solutions for subsea connections. Rio de Janeiro, France.
  • Schlumberger, 2004. Subsea production assurance. Houston, USA. White paper
  • KEITH, W. , 2003. Q-factor a wrong answer for service providers and NEMs. Santa Clara, USA.
  • Guy. F, 2005. Bridging the Gap between BER and Eye Diagram-A BER Contour, White paper Tutorial. San Francisco, USA.
  • Ajoy. G and Thyagarajan, K. Introduction to fiber optics. 1998. Cambridge: University press.
  • Optical Communication System Design. 2013 Video tutorials
  • Mário R. G. And Adolfo V. T. , 2008. Impact of the Signal and Nonlinearity Extinction Ratios on the Design of Nonideal 2R All-Optical Regenerators, journal of light wave technology
  • Muhammad. I, Hamdan. A, Mohammed, 2013, Design and Simulation of Dispersion Compensated DWDM System, International Journal of Computer Applications (0975 – 8887) Volume 69– No. 10, May 2013