Preface to the Fourth Edition
In previous editions of this Handbook, I have tried to summarize the importance of optical networking to the data communication field with the following bit of poetry:
When I consider how the light is bent
By fibers glassy in this Web World Wide,
Tera- and Peta-, the bits fly by
Are they from Snell and Maxwell sent
Or through more base physics, which the Maker presents
(lambdas of God?) or might He come to chide
“Doth God require more bandwidth, light denied?”
Consultants may ask; but Engineers to prevent
that murmur, soon reply “The Fortune e-500 do not need
mere light alone, nor its interconnect; who requests
this data, if not clients surfing the Web?” Their state
is processing, a billion ...
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