I found one or two errors with the m file and component.
1) If a component in OptiSystem is missing a connection to one of its inputs it will not create any output. Either connect a binary null to the receiver component or get rid of the input for now.
2) In the m file you reference the parameterized and noise signals, which do not exist in that particular signal, which gives an error. I simply deleted them to get it working but you could write some type of conditional statement.
Cheers!