Hello Kiran,
We have a number of videos from previous webinars covering multicore functionality. My recommendation would be to start with these if you have not already done some.
Photonic Crystal Fiber Sensors – https://www.youtube.com/watch?v=BqcKdMLa9M4&list=PLcThenAJUJwx9y3MHrZRj6SDmUDd1fDdN&index=12
Multicore Fiber Design & Analysis – https://www.youtube.com/watch?v=BUdVhigO6-I&list=PLcThenAJUJwx9y3MHrZRj6SDmUDd1fDdN&index=16
Multicore SM and MM Fibers with Trenches and Air-Hole Assisted – https://www.youtube.com/watch?v=E6LXu6jFJ3k&list=PLcThenAJUJwx9y3MHrZRj6SDmUDd1fDdN&index=21
Scott