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Singlemode fiber (SMF) is a kind of optical fiber that is utilized in the transmission of data over long distances. In SMF, data transmission is handled by a single glass fiber strand. Unlike in multimode fiber were multiple glass strands are used. In Europe, more than 90% of the deployed optical fiber cable is single-mode fiber cable. This type of cable is generally used in extensive data applications where networks are to be stretched across physically distant locations.

Short-Range 100G QSFP28 and 40G QSFP+ are widely used in data center applications these days. Generally speaking, 12-fiber patch cords with female, MPO type connectors are used for the types of transceivers as mentioned earlier. On the other hand; single-mode fiber (SMF) patch cords with duplex LC connectors are used for the long-range QSFP28 and QSFP+ transceivers. In all these applications, OM3 or OM4 fiber can be used. In this article, we are going to talk about the possible cabling solutions for QSFP28 and QSFP+ transceivers.