Raman Pump Modules are designed as sub-system level components for distributed Raman amplification in both the C-Band and L-Band. Each pump module is configured with two high power pump laser diodes and one polarization beam combiner （PBC）. Powered by single 5VDC supply, the module includes micro-controller based laser current and TEC control circuitry for ehanced stability and reliability. It is an ideal building block for 10G/40G transmission and fiber sensor systems.