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All-fibre gyroscope using depolarised superluminescent diode

All-fibre gyroscope using depolarised superluminescent diode

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© The Institution of Electrical Engineers
Published

An all-fibre gyroscope using a depolarised superluminescent diode which has a coherence length of 8 μm and a degree of polarisation of 0.03 is constructed. Although the configuration is very simple and the fibre length is as short as 200 m, the drift and detection limits are less than 14 deg/h and 1.5 deg/h, respectively.

Inspec keywords: light emitting diodes; gyroscopes; fibre optic sensors; angular velocity measurement

Other keywords: depolarised superluminescent diode; light emitting diode; fibre optic sensors; gyroscope; SLD; all-fibre configuration

Subjects: Velocity, acceleration and rotation measurement; Velocity, acceleration and rotation measurement; Fibre optics; Fibre optics and fibre waveguides; Fibre optic sensors; Sensing devices and transducers; Sensing and detecting devices

References

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      • R.A. Bergh , G. Kotler , H.J. Shaw . Single mode-fibre optic directional coupler. Electron. Lett. , 260 - 261
    2. 2)
      • K. Böhm , K. Petermann , E. Weidel . Performance of Lyot depolariser with birefringent single-mode fibres. IEEE J. Lightwave Technol. , 71 - 74
    3. 3)
      • K. Bohm , P. Marten , K. Petermann , E. Weidel , R. Ulrich . Low-drift fibre gyro using a superluminescent diode. Electron. Lett. , 352 - 353
    4. 4)
      • K. Okamoto , K. Takada , M. Kawachi , J. Noda . All-PANDA-fibre gyroscope with long-term stability. Electron. Lett. , 429 - 430
    5. 5)
      • N.K. Dutta , P.P. Deimel . Optical properties of a GaAlAs superluminescent diode. IEEE J. Quantum Electron. , 496 - 498
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