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conferenceseries
.com
Volume 4, Issue 4 (Suppl)
J Laser Opt Photonics, an open access journal
ISSN: 2469-410X
Optics 2017
November 15-17, 2017
November 15-17, 2017 | Las Vegas, USA
8
th
International Conference and Exhibition on
Lasers, Optics & Photonics
Advanced IR glass and fiber technology
S S Bayya
1
, V Q Nguyen
1
, W H Kim
1
, L B Shaw
1
, L E Busse
1
, D J Gibson
1
, R R Gattass
1
, D Rhonehouse
1
, F H Kung
2
, R Thapa
3
, J Frantz
1
, G Villalobos
1
, C Baker
1
,
M I Kotov
3
, R E Miklos
3
, C C McClain
2
, I D Aggarwal
3
and
J S Sanghera
1
1
Naval Research Laboratory, USA
2
University Research Foundation, USA
3
Sotera Defense Solutions, USA
C
halcogenide glasses, with their high refractive indices, low phonon energy, high nonlinearity and excellent transmission in the
infrared (IR) region, make them ideal for incorporation into various civilian, medical and military applications such as infrared
detectors, infrared lenses, planar optics, photonic integrated circuits, lasers and other non-linear optical devices. Chalcogenide
glasses have also been widely studied for use in numerous potential optical fiber applications such as fiber lasers, amplifiers, bright
sources, as well as passive solid and hollow core IR fibers for laser transmission. Although stable, low-loss chalcogenide based fibers
with minimum loss of <0.1 dB/m have been demonstrated, the chalcogenide based fibers suffer from absorption and scattering losses
mainly caused by impurities related to hydrogen, carbon and oxygen. Great efforts have been made in reducing optical losses using
improved chemical purification techniques, but further improvements are needed in both purification and fiberization technology to
attain the theoretical attenuation. We have also designed and developed negative curvature, anti-resonant fibers and demonstrated
record low loss in the 9.75 – 10.5 μm range. In this paper, we review our recent effort in the development of low loss chalcogenide
fibers, by describing the various purification methods and their impact on the optical fiber loss and discuss the potential future
outlook for these fibers.
Biography
S S Bayya received his PhD in Ceramics from Alfred University in 1992. He is a Research Scientist in the Optical Science Division at the Naval Research Laboratory (NRL)
since 1994. His research interests include transparent ceramics, bulk optics and IR fibers for various optical applications. He currently heads the Optical Materials section
at NRL. He has >50 publications and holds 30 patents on optical materials.
shyam.bayya@nrl.navy.milS S Bayya et al., J Laser Opt Photonics 2017, 4:4 (Suppl)
DOI: 10.4172/2469-410X-C1-017