Abstract

A phase-modulation approach to closed-loop fiber-optic gyroscopes is described that uses an all-fiber gyroscope, which can provide a linearized scale factor. Preliminary experimental results with manual closing of the feedback loop show good linearity in the scale factor. This approach has, in theory, an inherent suppression of source-wave- length dependence of the scale factor.

© 1984 Optical Society of America

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References

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  1. S. Ezekiel, H. J. Arditty, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 2.
  2. W. C. Davis, W. L. Pondrom, D. E. Thompson, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 308.
  3. J. L. Davis, S. Ezekiel, Opt. Lett. 6, 505 (1981).
    [CrossRef] [PubMed]
  4. B. Y. Kim, H. C. Lefevre, R. A. Bergh, H. J. Shaw, Proc. Soc. Photo-Opt. Instrum. Eng. 425, 86 (1983).
  5. B. Y. Kim, H. J. Shaw, Opt. Lett. 9, 263 (1984).
    [CrossRef] [PubMed]
  6. H. C. Lefevre, R. A. Bergh, H. J. Shaw, Opt. Lett. 7, 454 (1982).
    [CrossRef] [PubMed]
  7. R. A. Bergh, H. C. Lefevre, H. J. Shaw, Opt. Lett. 6, 502 (1981).
    [CrossRef] [PubMed]
  8. R. Ulrich, Opt. Lett. 5, 173 (1980).
    [CrossRef] [PubMed]

1984 (1)

1983 (1)

B. Y. Kim, H. C. Lefevre, R. A. Bergh, H. J. Shaw, Proc. Soc. Photo-Opt. Instrum. Eng. 425, 86 (1983).

1982 (1)

1981 (2)

1980 (1)

Arditty, H. J.

S. Ezekiel, H. J. Arditty, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 2.

Bergh, R. A.

Davis, J. L.

Davis, W. C.

W. C. Davis, W. L. Pondrom, D. E. Thompson, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 308.

Ezekiel, S.

J. L. Davis, S. Ezekiel, Opt. Lett. 6, 505 (1981).
[CrossRef] [PubMed]

S. Ezekiel, H. J. Arditty, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 2.

Kim, B. Y.

B. Y. Kim, H. J. Shaw, Opt. Lett. 9, 263 (1984).
[CrossRef] [PubMed]

B. Y. Kim, H. C. Lefevre, R. A. Bergh, H. J. Shaw, Proc. Soc. Photo-Opt. Instrum. Eng. 425, 86 (1983).

Lefevre, H. C.

Pondrom, W. L.

W. C. Davis, W. L. Pondrom, D. E. Thompson, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 308.

Shaw, H. J.

Thompson, D. E.

W. C. Davis, W. L. Pondrom, D. E. Thompson, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 308.

Ulrich, R.

Opt. Lett. (5)

Proc. Soc. Photo-Opt. Instrum. Eng. (1)

B. Y. Kim, H. C. Lefevre, R. A. Bergh, H. J. Shaw, Proc. Soc. Photo-Opt. Instrum. Eng. 425, 86 (1983).

Other (2)

S. Ezekiel, H. J. Arditty, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 2.

W. C. Davis, W. L. Pondrom, D. E. Thompson, in Fiber-Optic Rotation Sensors and Related Technologies, S. Ezekiel, H. J. Arditty, eds. (Springer-Verlag, Berlin, 1982), p. 308.

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Figures (4)

Fig. 1
Fig. 1

Sawtooth-waveform phase modulation and resultant phase-difference modulation.

Fig. 2
Fig. 2

(a) Phase-difference modulation constructed by two harmonic frequencies (cos ωmt − 0.3 cos 2ωmt). (b) The phase-difference modulation in (a) is used to null the Sagnac phase shift ΔϕR during the on period. The rotation signal will be turned off during the off period.

Fig. 3
Fig. 3

Schematic of the experimental setup.

Fig. 4
Fig. 4

Experimental results: (a) small rotation rate, (b) large rotation rate.

Equations (1)

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Δ ϕ ( t ) = ϕ ( t ) ϕ ( t τ ) .

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