Hello Umer
I want to mention that a broadband access network offers various high-speed services to the end-user such as internet, multimedia, tele-medicine and distant learning. Fiber to the home (FTTH) is an optical access network architecture that uses optical fibers to replace all or part of the metallic cables to the end-user. Using OptiSystem we can explore the performance of different architectures for FTTH networks.
I am posting a link of video where it is explained that an optical code-division multiple access (OCDMA) structure using three users.
Check the video link.
Hope it will help.
Thanks
Regards