Definition - What does 1000BaseF mean?
1000BaseF is a baseband specification defined in the IEEE 802.3z standard. It may also be called gigabit Ethernet for optical fiber networks.
Techopedia explains 1000BaseF
1000BaseF uses an 8b/10b frame encoding scheme, supported fiber channel devices, and a serializer/deserializer for converting parallel data to serial data and vice versa.