In the project discussed above. I have one query.
I have used the same FMF design made by Abdallah mentioned above.
Why I am not getting the good power of each mode (LP01, and two LP11 degenerated modes) after Power splitter using mode selector. I mean if you compare powers at laser output and at fiber output and finally after mode selector. why the power substantially reduces specially after fiber and mode selectors ? please see attached files for detail.