Hi ranjeet,
Optical circulator minimizes the loss of light. An optical circulator is a device used in optical communications systems, which can be used to separate optical signals that travel in opposite directions in an optical fiber, analogous to the operation of an electronic circulator.
Circulator is most widely used for bidirectional networks. If you check the library it is present in the passive component library and you will 3 types of circulators present there.
Thanks and regards