Can singlemode and multimode fiber be intermixed?

Developing a system that uses both singlemode and multimode fiber is possible if using a switching system that supports both fiber types, such as the Extron FOX Matrix Series. Singlemode fiber must be connected to a singlemode port, and multimode fiber must be connected to a multimode port. Directly connecting singlemode and multimode fiber is not recommended.

The difference in core sizes between these fibers introduces losses into the system. More.

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