Currently, there are two most used 100G interface types.
MMF FDDI
62.5/125 m
(1987) MMF OM1
62.5/125 m
(1989) MMF OM2
50/125 m
(1998) MMF OM3
50/125 m
(2003) MMF OM4
50/125 m
(2008) MMF OM5
50/125 m
(2016) SMF OS1
9/125 m
(1998) SMF OS2
9/125 m
(2000) 100 Gigabit Ethernet (100 GbE) (1st Generation: 10GbE-based) - (Data rate: 100 Gbit/s - Line code: 64b/66b  NRZ - Line rate: 10x 10.3125 GBd = 103.125 GBd - Full-Duplex) 100GBASE
-CR10
Direct Attach 100GBASE
-SR10 100 Gigabit Ethernet (100 GbE) (2nd Generation: 25GbE-based) - (Data rate: 100 Gbit/s - Line code: 256b/257b  RS-FEC(528,514)  NRZ - Line rate: 4x 25.78125 GBd = 103.125 GBd - Full-Duplex) 100GBASE
-CR4
Direct Attach 100GBASE
-KR4 100GBASE
-KP4 100GBASE
-SR4 100GBASE
-SR2-BiDi
(BiDirectional) 100GBASE
-SWDM4 100GBASE
-LR4 100GBASE
-ER4 100GBASE
-PSM4
(MSA) 100GBASE
-CWDM4
(MSA) 100GBASE
-CLR4
(MSA) 100GBASE
-CWDM4-OCP
OCP
(MSA) 100 Gigabit Ethernet (100 GbE) (3rd Generation: 50GbE-based) - (Data rate: 100 Gbit/s - Line code: 256b/257b  RS-FEC(544,514)  PAM4 - Line rate: 2x 53.125 GBd = 106.25 GBd - Full-Duplex) 100GBASE
-CR2 100GBASE
-KR2 100GBASE
-SR2 100GBASE
-DR 100GBASE
-FR1 100GBASE
-LR1 100GBASE
-ZR 100 Gigabit Ethernet (100 GbE) (4th Generation: 100GbE-based) - (Data rate: 100 Gbit/s - Line code: 256b/257b  RS-FEC(544,514)  PAM4 - Line rate: 106.25 G - Full-Duplex) 40 Gigabit Ethernet (40GbE) and 100 Gigabit Ethernet (100GbE) are groups of computer networking technologies for transmitting Ethernet frames at rates of 40 and 100 gigabits per second (Gbit/s), respectively. 
