Prisma II Post-Amplifier ModulesPrisma II Post-Amplifier modules use cladding pumped Er/Yb co-doped fiber technology to achieve the high output power levels that regular EDFA cannot reach. This product is designed for high operation efficiency and excellent noise performance. The post-amplifier module is directly fed by a pre-amplifier module and outputs the high optical power level required to feed the passive optical network (PON). Prisma II Post-Amplifier modules are available in 1-wide and 2-wide modules. The 1-wide post- amplifier module is temperature hardened for use in applications having less temperature control than a headend or CO environment. The 2-wide post-amplifier module is normally used in a temperature controlled headend or CO environment.