XenOpt transceivers will allow coherent hi-power DWDM 100Gbit connections on up to 80 km distances without optical amplification and up to 120km distances with optical amplification. Versions with standard and high TX power will be available. High power versions can also be used in standard DWDM amplified transport systems designed for 10Gb channels. These transceivers will be compatible with most 100Gb and 400Gb switches that now can not use QSFP-DD transceivers that require ports with high power capability.