Optical path performance testing system for fiber-optic gyroscope
A test system and fiber optic gyroscope technology, applied in the field of fiber inertial navigation, can solve the problems of interferometer optical path, total loss of optical path cannot be tested, vulnerable devices, and complicated testing, and achieve intuitive test results, low cost, and ensure the reliability of the optical path. Effect
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[0034] An optical path performance test system for a fiber optic gyroscope, comprising a light source output drive module 1, a light source output module 2, an optical power test module 3, an interferometer optical path loss test module 4, a detector voltage detection module 5 and a data processing display module 6. The optical fiber gyro optical path under test is as follows: figure 2 shown.
[0035] The fiber optic gyro optical path includes a fiber ring a, a Y waveguide b, a coupler c, a light source d and a detector e, and the pigtails of the above components are connected through fusion points at m1-m5. The optical path formed by connecting the fiber ring a and the Y waveguide b through the fusion points at m1 and m2 is called the interferometer optical path I.
[0036] The light source output driving module 1 provides a light source driving current interface, which can be connected to the light source 1-1 and the external light source 0-1, and realizes constant tempera...
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