The Entire family of IEEE LAN Standards 202011220920 Ethernet Standards (Physical) that together define the Physical Layer & the Data-Link Layers of the Wired LAN technology is referred to as an Ethernet.
Some Switch comes with built-in SPF ports that support the Optical Ethernet Standards, whereas some Ethernet switches come with Modular Ports where we can swap the normally used Ethernet ports to the Optical SPF/SPF+ ports which support SPF Modules with 10Gbps Standards.