1 June 1984 Linearized Fiber Optic Sensor Readout
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Abstract
Interferometric sensors traditionally have been limited by their non-linear input-output characteristics. This paper presents a method for output linearization using four interferometer outputs corresponding to ±sin ct and ±coscp, where 4 is the relative phase of interferometer legs. These outputs are combined in an arctangent algorithm to extract (/). Applications to both Mach-Zehnder and Sagnac interferometers are discussed, with experimental data from a fiber gyro presented. The data taken over a 47r range of 4 demonstrate linearity and stability of the algorithm.
Joel G. Hanse, Joel G. Hanse, Gordon Mitchell, Gordon Mitchell, } "Linearized Fiber Optic Sensor Readout," Optical Engineering 23(3), (1 June 1984). https://doi.org/10.1117/12.7973284 . Submission:
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