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Optica Publishing Group
  • Chinese Optics Letters
  • Vol. 18,
  • Issue 12,
  • pp. 120601-
  • (2020)

Near-navigation-grade interferometric fiber optic gyroscope with an integrated optical chip

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Abstract

We present a near-navigation-grade interferometric fiber optic gyroscope (IFOG) based on an integrated optical chip. The chip comprises a light source, a photodiode, and a 3 dB coupler within an area of 48 mm2. By interrogating with an integrated optical modulator and a small-diameter sensing coil, the IFOG is realized. This allows for a significant reduction in size, weight, power consumption, and cost. Preliminary performance data of a gyro prototype exhibits 0.018 deg/h bias instability.

© 2020 Chinese Laser Press

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