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Selvendran S

No, Chirp-Managed Directly Modulated Laser (CML) is a special kind source to mitigates the dispersion in a fiber for long reach PON network.
CML is nothing but combutination of (DML Laser + Passive Optical Filter)…
As per Reply #12575 the problem is raised from the phase noise or chrip of DML laser mean, CML can be a better alternate to rectify your problem.

herewith i have attached some journal papers regarding Chirp-Managed Directly Modulated Laser for your reference… all the best for your research..