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- W2618796543 abstract "In the early 70’s fiber optics were being developed.However, polarization properties were not ideal,absorption of light was too high, and there were thermalproblems, noise problems, etc. These problems madeworking with the early fibers difficult. The optical fiber,however, gave a promise of improved communications,unique sensor and instrument configurations. Using aspecial fiber geometry single mode behavior could beobtained. Dr. Vic Vali and I acquired ten meters of singlemode fiber from the Corning Company. A simple singleaxis fiber-optic-gyroscope (FOG) interferometer (SagnacInterferometer) was constructed. With this device itappeared possible that rotation rate could be detected.Such a device is an essential component of an inertialnavigation system. Laser light is injected into a multipleloop of the fiber in both directions (the light beamscounter rotate) There are no moving parts in such a deviceas there is in a conventional rotating mass gyroscope.While a ring-laser-gyro (RLG) serves the same function,the FOG was potentially less expensive, more accurate and easier to build. In 1976, we constructed a FOGsensitive enough that left no doubt that the FOG could beused to measure rotation rate. All that was required tocommercialize this instrument was an improvement in theproperties of the optical fiber. Now, twenty-five yearslater, the FOG has been in commercial use for more thanten years." @default.
- W2618796543 created "2017-06-05" @default.
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- W2618796543 date "2001-06-13" @default.
- W2618796543 modified "2023-09-27" @default.
- W2618796543 title "No Moving Parts: A Fiber Optic Gyroscope" @default.
- W2618796543 hasPublicationYear "2001" @default.
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