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Optical Fiber Telecommunications VA, 5th Edition
book

Optical Fiber Telecommunications VA, 5th Edition

by Ivan Kaminow, Alan E. Willner, Tingye Li
July 2010
Intermediate to advanced content levelIntermediate to advanced
944 pages
34h 12m
English
Academic Press
Content preview from Optical Fiber Telecommunications VA, 5th Edition
850 m (nonlinearity = 20 W/1 km), BPF2 width of 0.5 nm centered at 1558.0 nm.
The amplifier boosts the noisy pulses up to a peak power level of 500 mW, sufficient
to induce XPM on the clock. The regenerator is followed by a variable attenuator VA2
to ensure the peak optical power is constant at a relatively high 2 mW, where shot and
thermal noises are negligible as verified by the BER being <<10
–13
(no errors) with
no ASE added. In contrast, with ASE noise we obtain 10
–10
< BER < 10
–2
, depending
on the OSNR. Signal spontaneous beat noise is the most prominent source of noise
when ASE is present. Figure 20.23 shows an improvement in BER from 3 10
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Publisher Resources

ISBN: 9780123741714