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Properties and applications of poled glass

Properties and applications of poled glass
Properties and applications of poled glass
When glass fibres were first proposed for optical communications in the late 1960's, one attractive selling point was their extreme insensitivity (if not complete immunity) to electromagnetic interference, which - in addition to a much larger bandwidth - gave them considerable advantages over co-axial cable. Early research concentrated on reducing the optical absorption to the lowest possible levels, eventually achieving values <0.1 dB/km in the main communications windows at 1.3 and 1.5µm. At this point there seemed no reason to suppose that germanium doped silica glass of extremely high purity should be anything other than an almost perfect optical transmission medium. Ambitious, however, to extend the capabilities of optical fibres, researchers went on to study whether more complex functions such as amplification, modulation, wavelength conversion and lasing could be incorporated, the idea being to avoid the need for optical-electronic-optical repeaters and modulators. This effort has resulted in the successful demonstration of all-optical diode-laser-pumped in-fibre lasing and amplification by incorporation of rare-earth dopants in the core glass. These developments are already revolutionising communications system design.
Russell, P.St.J.
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Kazansky, P.G.
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Russell, P.St.J.
77db5e8d-8223-4806-ae60-a106619a022a
Kazansky, P.G.
a5d123ec-8ea8-408c-8963-4a6d921fd76c

Russell, P.St.J. and Kazansky, P.G. (1996) Properties and applications of poled glass. Bunsen Kolloquium, Darmstadt, Germany. 23 - 24 Feb 1996.

Record type: Conference or Workshop Item (Paper)

Abstract

When glass fibres were first proposed for optical communications in the late 1960's, one attractive selling point was their extreme insensitivity (if not complete immunity) to electromagnetic interference, which - in addition to a much larger bandwidth - gave them considerable advantages over co-axial cable. Early research concentrated on reducing the optical absorption to the lowest possible levels, eventually achieving values <0.1 dB/km in the main communications windows at 1.3 and 1.5µm. At this point there seemed no reason to suppose that germanium doped silica glass of extremely high purity should be anything other than an almost perfect optical transmission medium. Ambitious, however, to extend the capabilities of optical fibres, researchers went on to study whether more complex functions such as amplification, modulation, wavelength conversion and lasing could be incorporated, the idea being to avoid the need for optical-electronic-optical repeaters and modulators. This effort has resulted in the successful demonstration of all-optical diode-laser-pumped in-fibre lasing and amplification by incorporation of rare-earth dopants in the core glass. These developments are already revolutionising communications system design.

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Published date: 1996
Venue - Dates: Bunsen Kolloquium, Darmstadt, Germany, 1996-02-23 - 1996-02-24

Identifiers

Local EPrints ID: 76878
URI: http://eprints.soton.ac.uk/id/eprint/76878
PURE UUID: fb46d861-f58b-46d3-a813-bd40622c09d1

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Date deposited: 11 Mar 2010
Last modified: 13 Mar 2024 23:38

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Contributors

Author: P.St.J. Russell
Author: P.G. Kazansky

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