In this thesis, the fabrication and performance of the 2.5Gb/s optical transceiver modules applied in optical communication network are discussed. The optical transceiver modules consist of transmitter and receiver. The transmitters are composed by laser driver IC and 1310 FP (Fabry-Perot) laser, where the receivers are composed by limiting amplifier IC and 1310nm ROSA (Receiver Optical Sub-Assembly). In the design of modules, not only components but also the PCB layout affects the performance heavily. In signal transmission, we must use proper termination scheme to eliminate the signal reflection. Besides we must also consider the EMI and crosstalk problems, so the design will be perfect. An optical transceiver module is operated at signal pattern of 27-1 and data rate of 2.5Gb/s. In transceiver, the result of measurement, Peak-Peak Jitter is 29ps. In receiver, back to back, the Peak-Peak Jitter is 29ps. In addition, the measuring result connecting with 2km fiber of Peak-Peak Jitter is 30ps. The result of eye diagram measurement can meet the mask of ITU-T standard. In the condition of bit error rate of 10-12 , the sensitivity of receiver is -15.4dBm.