Abstract

A novel scheme for a fiber-optic heterodyne gyroscope is proposed. This scheme produces two beat-photocurrent signals, including the Sagnac phase shift of opposite sign. The phase-difference measurement of these signals enables us to cancel their common phase factor but to obtain twice the Sagnac phase shift. The operation principle is verified experimentally.

© 1988 Optical Society of America

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References

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  1. D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
    [CrossRef]
  2. B. Culshaw, I. P. Giles, IEEE J. Quantum Electron. QE-18, 690 (1982).
    [CrossRef]
  3. I. P. Giles, Proc. Inst. Electr. Eng. 132-J, 265 (1985).
  4. T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.
  5. K. Hotate, N. Okuma, M. Higachiguchi, N. Niwa, Opt. Lett. 7, 331 (1982).
    [CrossRef] [PubMed]
  6. G. D. Peng, S. Y. Huang, Z. Q. Lin, IEEE J. Lightwave Technol. LT-5, 986 (1987).
    [CrossRef]
  7. Y. Imai, H. Koseki, Y. Ohtsuka, Appl. Opt. 26, 2962 (1987).
    [CrossRef] [PubMed]
  8. H. Koseki, Y. Imai, Y. Ohtsuka, in Technical Digest of the Fifth Optical Fiber Sensors Meeting (Optical Society of America, Washington, D.C., 1988), p. 168.

1987 (2)

G. D. Peng, S. Y. Huang, Z. Q. Lin, IEEE J. Lightwave Technol. LT-5, 986 (1987).
[CrossRef]

Y. Imai, H. Koseki, Y. Ohtsuka, Appl. Opt. 26, 2962 (1987).
[CrossRef] [PubMed]

1985 (1)

I. P. Giles, Proc. Inst. Electr. Eng. 132-J, 265 (1985).

1982 (2)

K. Hotate, N. Okuma, M. Higachiguchi, N. Niwa, Opt. Lett. 7, 331 (1982).
[CrossRef] [PubMed]

B. Culshaw, I. P. Giles, IEEE J. Quantum Electron. QE-18, 690 (1982).
[CrossRef]

1978 (1)

D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
[CrossRef]

Anderson, D. B.

D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
[CrossRef]

Culshaw, B.

B. Culshaw, I. P. Giles, IEEE J. Quantum Electron. QE-18, 690 (1982).
[CrossRef]

Giles, I. P.

I. P. Giles, Proc. Inst. Electr. Eng. 132-J, 265 (1985).

B. Culshaw, I. P. Giles, IEEE J. Quantum Electron. QE-18, 690 (1982).
[CrossRef]

Higachiguchi, M.

Hotate, K.

Huang, S. Y.

G. D. Peng, S. Y. Huang, Z. Q. Lin, IEEE J. Lightwave Technol. LT-5, 986 (1987).
[CrossRef]

Imai, Y.

Y. Imai, H. Koseki, Y. Ohtsuka, Appl. Opt. 26, 2962 (1987).
[CrossRef] [PubMed]

H. Koseki, Y. Imai, Y. Ohtsuka, in Technical Digest of the Fifth Optical Fiber Sensors Meeting (Optical Society of America, Washington, D.C., 1988), p. 168.

Koseki, H.

Y. Imai, H. Koseki, Y. Ohtsuka, Appl. Opt. 26, 2962 (1987).
[CrossRef] [PubMed]

H. Koseki, Y. Imai, Y. Ohtsuka, in Technical Digest of the Fifth Optical Fiber Sensors Meeting (Optical Society of America, Washington, D.C., 1988), p. 168.

Kubota, T.

T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.

Kurosawa, K.

T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.

Lin, Z. Q.

G. D. Peng, S. Y. Huang, Z. Q. Lin, IEEE J. Lightwave Technol. LT-5, 986 (1987).
[CrossRef]

Niwa, N.

Ohtsuka, Y.

Y. Imai, H. Koseki, Y. Ohtsuka, Appl. Opt. 26, 2962 (1987).
[CrossRef] [PubMed]

H. Koseki, Y. Imai, Y. Ohtsuka, in Technical Digest of the Fifth Optical Fiber Sensors Meeting (Optical Society of America, Washington, D.C., 1988), p. 168.

Okuma, N.

Ose, T.

T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.

Peng, G. D.

G. D. Peng, S. Y. Huang, Z. Q. Lin, IEEE J. Lightwave Technol. LT-5, 986 (1987).
[CrossRef]

Tai, H.

T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.

Thompson, D. E.

D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
[CrossRef]

Yao, S. K.

D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
[CrossRef]

Yoshino, T.

T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.

Youmans, B. R.

D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
[CrossRef]

Appl. Opt. (1)

Appl. Phys. Lett. (1)

D. E. Thompson, D. B. Anderson, S. K. Yao, B. R. Youmans, Appl. Phys. Lett. 33, 940 (1978).
[CrossRef]

IEEE J. Lightwave Technol. (1)

G. D. Peng, S. Y. Huang, Z. Q. Lin, IEEE J. Lightwave Technol. LT-5, 986 (1987).
[CrossRef]

IEEE J. Quantum Electron. (1)

B. Culshaw, I. P. Giles, IEEE J. Quantum Electron. QE-18, 690 (1982).
[CrossRef]

Opt. Lett. (1)

Proc. Inst. Electr. Eng. (1)

I. P. Giles, Proc. Inst. Electr. Eng. 132-J, 265 (1985).

Other (2)

T. Yoshino, T. Ose, H. Tai, T. Kubota, K. Kurosawa, in Technical Digest of the Fourth International Conference on Integrated Optics and Optical Fiber Communication (Institute of Electronics and Communication Engineers of Japan, Tokyo, 1983), p. 312.

H. Koseki, Y. Imai, Y. Ohtsuka, in Technical Digest of the Fifth Optical Fiber Sensors Meeting (Optical Society of America, Washington, D.C., 1988), p. 168.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the proposed optical heterodyne gyroscope.

Fig. 2
Fig. 2

The phase-difference output traced on chart paper. The output is recorded every 1 deg/sec from ±1 deg/sec to ±10 deg/sec.

Fig. 3
Fig. 3

Phase-difference output as a function of the rotation rate.

Fig. 4
Fig. 4

The phase-difference output traced with the HFOG at rest. The time constant is 1 sec.

Equations (5)

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I 1 b ( t ) = B 1 cos ( 2 π f 0 t + 2 θ Ω - Δ ϕ 1 ) ,
I 2 b ( t ) = B 2 cos ( 2 π f 0 t - 2 θ Ω - Δ ϕ 2 ) ,
Δ ϕ = 4 θ Ω - Δ ϕ 0 ,
Δ ϕ 0 = Δ ϕ 1 - Δ ϕ 2 = ( k 1 - k 2 ) Δ L ,
Ω = ( c Δ ϕ ) / ( 8 A N k ) ,

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