| Fiber optic gyroscope (FOG) was affected greatly by temperature and vibration. The domestic and foreign related technology was fully researched. The limitations of input channel depolarization scheme and full polarization maintaining scheme were analyzed. Then, a kind of micro integrative transceiver module is designed. It integrated super luminescent diode (SLD) source, half transmission and half reflection glass slide, collimation lens, GRIN lens, PIN detector and field effect technology (FET) circuit. The system in package (SIP) technique was applied and vacuum was created. The integrative transceiver module was analyzed in theory. The light propagation in vacuum didn't produce birefraction. Thus, the system accuracy and liability effects caused by temperature and vibration were avoided and the whole performance of FOG was promoted. The Superlum Inc. SLD-56-HP and SLD-38-HP type source model were created by beam scanner. According to Gaussian beam characteristic, the compact optical system is designed and the Fresnel reflection loss was analyzed. Then, the simulation was exerted by Zemax software. Then the structure of the integrative transceiver module has been designed. The SLD chip packaging technology was discussed. Its thermodynamic performance was analyzed by thermal resistance theory. The numerical solution for theoretical analysis was given by the finite element method (FEM). Based on the analysis all above, a trial integrative transceiver module sample was produced. For performance verification, a FOG system was built according to the sample. Its performance under thermal and mechanical environment was examined. Finally, work on this article was summed up, and the future work direction was expected.
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