

Laser Optics & Photonics and Atomic & Plasma Science 2018
J u l y 1 6 - 1 7 , 2 0 1 8
P r a g u e , C z e c h R e p u b l i c
Page 80
American Journal of Computer Science and Information Technology
ISSN: 2349-3917
E u r o S c i C o n J o i n t E v e n t o n
Laser Optics & Photonics and
Atomic & Plasma Science
W
e propose an optical network suited for fibre-to-the-hut application. This study experimentally investigates the performance
of Raman-aided, vertical cavity surface emitting laser (VCSEL)-based networks optimized for the sparsely populated areas
in Africa. Raman amplification is preferred due to its high gain, low noise figure over a wide wavelength range suited for long
reach optical network systems. VCSELs on the other hand are attractive due to their low cost and low power consumption hence
affordability by the low-income earning users in the remote villages of Africa. In this study, a 1550 nm VCSEL is modulated
with a 4.25 Gbps pseudo-random bit sequence (PRBS) and transmitted over an ITU-T G 655 fibre. The performance of Raman
amplification at different pumping configurations is demonstrated. The transmission quality is then analysed through BER
measurements. Our findings showed that error-free transmissions extending to over 100 km are achieved. This is a relatively
cheap all-optical network ideal for long reach supporting a broadband connection to a number of users.
ekinoo@kabianga.ac.keFibre-to-the-Hut; Broadband connection to the
remote user in an African setting
E K Rotich Kipnoo
1, 2
, D Kiboi Boiyo
2
, D W Waswa
3
, R R G
Gamatham
4
, A W R Leitch
2
and T B Gibbon
2
1
University of Kabianga, Kenya
2
Nelson Mandela University, South Africa
3
University of Eldoret, Kenya
4
SKA-MeerKAT, South Africa
Am J Compt Sci Inform Technol 2018, Volume 6
DOI: 10.21767/2349-3917-C1-003