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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 68
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
S K Liaw et al., Am J Compt Sci Inform Technol 2018, Volume 6
DOI: 10.21767/2349-3917-C1-003
The aim of this paper is to enable solar energy (green energy) for designing
the fiber-optic laser and amplifier. Collection of sunlight as the pump lasers
are lunched into fiber laser and fiber amplifier, respectively. Fiber lasers and
fiber amplifiers are designed based on solar pumping and various gained
fibers. The operation wavelength of fiber devices is decided by the pumped
wavelengths which we selected. For example, the 980 nm solar pumped is for
1550 nm Erbium doped fiber devices as well as for 1064 nm Ytterbium doped
fiber devices. To facilitate free space communication using solar pumped fiber
amplifier and fiber lasers in the absence of electric power, especially during
natural disasters, solar energy can be stored using a battery and which can
be used to maintain an uninterruptible communication setup. To improve
the pump slope efficiency, we designed a multi-input pumped power from
different ports/positions to collect much more solar power. Parameters such
as the pump slope efficiency, gain and noise figure for fiber amplifier or fiber
laser are analyzed. The performance is tested in cloudy days, rainy days and
sunny days for comparison. The fiber devices may be used for applications in
uninterruptible fiber optic communication systems during disasters.
Biography
Shien-Kuei Liaw received double Doctorate degrees from
National Chiao-Tung University in photonics engineering and
from National Taiwan University in mechanical engineering,
respectively. He joined the National Taiwan University of
Science and Technology (NTUST) in 2000. He has been the
Director of both the Optoelectronics Research Center and the
Technology Transfer Center there. He was a Visiting researcher
at Bellcore (now Telcordia), USA in 1996 for six months and a
visiting Professor at University of Oxford, UK for three months
in 2011. He has forty U S/Taiwan patents and more than 250
journal articles and international conference presentations.
He has been actively contributing for many conferences as
technical program chair, international advisory committee and/
or keynote speaker. Currently, he is a distinguished Professor
at National Taiwan University of Science and Technology,
President of the Optical Society (OSA) in Taiwan chapter and
the Secretary-General of the Taiwan Photonic Society.
Study on solar pumped fiber optical devices for maintaining
essential optical communications during disasters
S K Liaw1, P H Tsai1, B Srinivasan 2, A Sivasubramanian 2 and K Chitra3
1National Taiwan University, Taiwan
2Indian Institute of Technology, India
3VIT University, India