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aasif bashir dar
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Dear hayder ali.

To understand how fwm can be mitigated, you need to under what fwm is and how this occurs.
eg. A dispersive media has low fwm effects..
Becoz two photons with differents wavelenths travel with different speeds and hence are far apart to participate in any quatum interaction.
That is also a reason we never used dispersion shifted fiber becoz zero dispersion in fiber will lead to fwm.
Besides you can cpsk modulation to suppress fwm
With ragards

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