Laser emitter and receiver

sbarahona:
Hello everyone, I'm doing a circuit with an infrared laser emitter and a receiver. However, I have had problems with sunlight because it produces erroneous readings on the receiver. I understand that with a filter I can fix this, can someone help me with the design of this filter or can you give me information about it?

Thank you very much

You didn't say which emitter and receiver you have, you didn't say whether you mean optical filter or modulation filter.