Optical Fiber Communications
The third edition of this popular text and reference book presents the fundamental principles for understanding and applying optical fiber technology to sophisticated modern telecommunication systems.
Optical-fiber-based telecommunication networks have become a major information-transmission-system, with high capacity links encircling the globe in both terrestrial and undersea installations. Numerous passive and active optical devices within these links perform complex transmission and networking functions in the optical domain, such as signal amplification, restoration, routing, and switching. Along with the need to understand the functions of these devices comes the necessity to measure both component and network performance, and to model and stimulate the complex behavior of reliable high-capacity networks.
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Using Eq . ( 4 - 31 ) , this threshold value can be expressed in terms of the
threshold current Jth needed to maintain an inversion level n = Nth in the steady
state when the number of photons 0 = 0 : ent Jen needed is threshold valueshold
In the link power budget analysis one first determines the power margin between
the optical transmitter output and the minimum receiver sensitivity needed to
establish a specified BER . This margin can then be allocated to connector ,
Given that each node requires p wavelengths to transmit information , the total
number of wavelengths N , needed in the network is Ni = pN = kpk + 1 ( 12 - 18 )
Figure 12 - 18 illustrates a ( p , k ) = ( 2 , 2 ) ShuffleNet , where the ( k + 1 ) th ...
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Overview of Optical Fiber Communications
Structures Waveguiding and Fabrication
Signal Degradation in Optical Fibers
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