XGS-PON
XGS-PON
GPON, XGS-PON, and WDM-PON networks are three types of passive optical networks.
A quick look at the latest standards from ITU include:
XGS-PON (10G downstream: 1577 nm / 10G upstream: 1270 nm): a higher bandwidth, symmetric version of GPON. Again, it features the same capabilities as GPON and can co-exist on the same fiber with GPON. XGS-PON deployments are just beginning.
NG-PON2 (10G down / 10G up, 10G down / 2.5G up):Not only is NG-PON2 a higher bandwidth version of GPON, it also enables new capabilities like wavelength mobility and channel bonding. NG-PON2 co-exists well with GPON, XG-PON, and XGS-PON.
50G PON (50G down / 10G or 25G or 50G up): deliver several true 10G services, 5G fronthaul, and residential services all on a single fiber. This standard launched in late 2021, but vendors must create the required chips and products to deliver it.
CWDM: (1270~1610nm) total 18 wavelengths; 20nm spacing
DWDM: (1528.77~1566.72nm) total 96 wavelengths; 0.4nm spacing
RF Video/CATV: 1550nm ; OTDR: 1650nm/1625nm