DC-25Mbps optical receiver

Hi,
My project is to design an optical receiver which is used in data communications, industrial control monitors,et.. It is required to operate from DC-25Mbps. Because my receiver used some DC feedback to improve dc offset., it is in fact a bandpass system. So I have the concern it works in DC.

Here, what "DC" exactly mean? it means the long consucutive "1""0"bits? How long it can be called DC signal?

Thanks for the help

One should use a (prbs) data scrambler to remove the DC from your data stream at TX and a de-scrambler at the receiver side.

Hi sajidkhan,
After communicating with our customer. the DC means it is like a burst mode in PON system. I.e., it means the long "1" or"0",and will wake up in a time you can not expect previously.

Regards
Chang