Progress towards the field deployment of coherent optical fiber systems

Progress towards the field deployment of coherent optical fiber systems

A description is given of the first demonstration of a coherent optical transmission system deployed in an operational network. The miniaturized external cavity laser and the automated endless polarization control scheme which made it possible to mount this demonstration are described in detail, tog...

Full description

Saved in:
Bibliographic Details
Published in:Journal of lightwave technology Vol. 8; no. 3; pp. 423 - 437
Main Authors: Brain, M.C., Creaner, M.J., Steele, R.C., Walker, N.G., Walker, G.R., Mellis, J., Al-Chalabi, S., Davidson, J., Rutherford, M., Sturgess, I.C.
Format: Journal Article
Language:English
Published: New York, NY IEEE 01-03-1990
Institute of Electrical and Electronics Engineers
Subjects:
Applied sciences
Automatic control
Control systems
Distributed Bragg reflectors
Exact sciences and technology
Fiber lasers
Frequency shift keying
Optical control
Optical fiber networks
Optical fiber polarization
Optical fibers
Stimulated emission
Systems, networks and services of telecommunications
Telecommunications
Telecommunications and information theory
Transmission and modulation (techniques and equipments)
Optical transmission
Heterodyne detection
Laser
Telecommunication network
Experimental study
Coherent detection
Optical fiber
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:A description is given of the first demonstration of a coherent optical transmission system deployed in an operational network. The miniaturized external cavity laser and the automated endless polarization control scheme which made it possible to mount this demonstration are described in detail, together with specific system results. A discussion is presented of the possible field deployment of other coherent system options, based on FSK modulation of DFB and DBR lasers, and polarisation diversity reception. The considerable potential afforded by coherent techniques for meeting future network requirements is highlighted. The demonstrated advantages of greater power budget and wavelength selectivity, combined with the use of optical amplifier multiwavelength repeaters, make coherent techniques particularly relevant to the growing demand for greater transmission capacity, transparency, and network flexibility. An increasingly urgent need for robust coherent optical technology can thus be anticipated, for wideband transmission and passive routing, for both telecommunications and computer networks of the near future.< >
Bibliography:ObjectType-Article-2
SourceType-Scholarly Journals-1
ObjectType-Feature-1
content type line 23
ISSN:0733-8724
1558-2213
DOI:10.1109/50.50739