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Propositions for increasing Fiber-Optic Link Capacity

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What alternatives can the telephone company consider to increase capacity?

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Following are some of the possible choices:

1) Use optical differential phase shift keying (DPSK). This will result in two fold increase in capacity as compared to NRZ coding due to 3 dB lower optical SNR at the receiver.

2) An important step is to implement Wavelength-division ...

Solution Summary

This solution comprises of different propositions that can be used to increase fiber-optic link capacity in case of saturation and traffic overload.