Optical Isolator and Optical Circulator

[@jaiho2623]

Thanks for that video. However the return path also looks same so why are the rays diverging and not converging at output. Slight confusion here.

[@akhilakshay7145]

Good explaination

[@rishabh-sm9co]

When both lights 45 degree rotated then how in reverse they are entering with horizontal and vertical component