Results 251 to 260 of about 710,542 (267)

Coherent Optical Communication Systems

IETE Journal of Education, 1997
This paper presents an overview of coherent optical fiber communication systems. The fundamental principle is described and the performance limits under shot noise limited operation for various modulation and demodulation schemes are compared with respect to the quantum limit.
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Coherent multichannel communication systems

Digest of Conference on Optical Fiber Communication, 1992
In the past few years enormous advances have been made in lightwave technology providing multichannel transmission over optical fibers. Coherent optical frequency multiplexing communication techniques are a promising way to supply multichannel high capacity communication services. Making use of its high sensitivity, coherent techniques are today on the
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Coherent optical space communications

2006
This paper reviews the present state of concepts and technologies of coherent optical space communications. Emphasis is placed on the receiving segment. Heterodyne and homodyne reception allows to realize sensitivities close to the theoretical limits which amount to as little as 10 to 40 photons per bit.
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Coherent optical fiber communications

SPIE Proceedings, 1991
The very high detection sensitivities and selectivities associated with coherent lightwave techniques furnish a basis for the exploitation of the great potential bandwidth of single-mode fibers in point-to-point and point-to-multipoint transmission.
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Coherent communications

Fiber and Integrated Optics, 1992
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Community, Coherence, and Inclusiveness

2003
This paper develops a theory of schools as communities. It argues that the key to a school that is a community is that such schools are rooted in something I call a Shared Educational Project. An SEP is a constitutive vision of the nature of a good education that involves public ends requiring cooperation to achieve.
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Communicative Intentions and Coherence Relations

1999
Ted J.M. Sanders, Wilbert Spooren
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Coherent optical communication

Trends in telecommunications, 1992
Koonen, A.M.J., van Eijk, P.D.
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“Coherent light” for communications

Journal of the Franklin Institute, 1962
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Coherent optical communications systems

2008 Digest of the IEEE/LEOS Summer Topical Meetings, 2008
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