The STICK optical module can fully meet the requirements of the carrier-grade FTTB\ FTTH\ FTTO device. It can be hot-swapped into the SFP+ slot of the Layer 2 Ethernet switch. The whole machine can be used as an ONT or even an MDU, so that the whole device can be directly connected to the XGSPON optical network, the central office OLT only needs to register the XGSPON ONU STICK optical module as if it were a normal optical cat. The communication device can complete the access switch from the original P2P. It also contain a DFB laser diode is employed for upstream transmission at 9.953Gbps. The optical transmitter includes a back facet photo-detector to monitor laser power for APC control. and an APD with TIA is employed for downstream data reception at 9.953Gbps. A post amplifier is also included for CML output compatibility.