I am an undergrad student and my final year report involves making a transmitter and a receiver for optical communication. So for the receiver i have made a design and now its not working. I dont even have much time to look into the probem now. So I was thinking if I could write as much as possible. Hence if anyone could atleast look at the design and give some information about why there could be a problem and what could have been done to make it work if there was time. Basically all the troubleshooting ideas. And also if someone could explain me the circuit design and why the values were chosen in the DS of AD8015 last page. I would really appreciate for all your concerns. Thank you.