Abstract

We report a novel polarimetric fiber laser sensor for magnetic-field–current measurement that is stable to variation of temperature and strain because it employs a Faraday rotating mirror. We obtained a sensitivity of 10.24 kHz/A with good linearity and greatly improved the signal-to-noise ratio by reducing the number of laser cavity modes with the help of a saturable absorber.

© 1996 Optical Society of America

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References

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1995 (2)

1994 (1)

1993 (3)

1989 (1)

M. Martinelli, Opt. Commun. 72, 3447 (1989).
[CrossRef]

1984 (1)

J. Noda, T. Hosaka, T. Sasaki, R. Ulrich, Electron. Lett. 20, 906 (1984).
[CrossRef]

1979 (1)

Ball, G. A.

Daisy, R.

Fischer, B.

Horowitz, M.

Hosaka, T.

J. Noda, T. Hosaka, T. Sasaki, R. Ulrich, Electron. Lett. 20, 906 (1984).
[CrossRef]

Jeong, H. J.

Kim, B. K.

Kim, B. Y.

Kim, H. K.

Kim, H. S.

H. S. Kim, S. K. Kim, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 2 of 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), p. 149.

Kim, H. Y.

Kim, S. K.

H. Y. Kim, S. K. Kim, H. J. Jeong, H. K. Kim, B. Y. Kim, Opt. Lett. 20, 386 (1995).
[CrossRef] [PubMed]

H. K. Kim, S. K. Kim, H. G. Park, B. Y. Kim, Opt. Lett. 18, 317 (1993).
[CrossRef] [PubMed]

H. K. Kim, S. K. Kim, B. Y. Kim, Opt. Lett. 18, 1465 (1993).
[CrossRef] [PubMed]

H. S. Kim, S. K. Kim, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 2 of 1996 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1996), p. 149.

Martinelli, M.

M. Martinelli, Opt. Commun. 72, 3447 (1989).
[CrossRef]

Meltz, G.

Morey, W. W.

Noda, J.

J. Noda, T. Hosaka, T. Sasaki, R. Ulrich, Electron. Lett. 20, 906 (1984).
[CrossRef]

Park, H. G.

Sasaki, T.

J. Noda, T. Hosaka, T. Sasaki, R. Ulrich, Electron. Lett. 20, 906 (1984).
[CrossRef]

Simon, A.

Ulrich, R.

J. Noda, T. Hosaka, T. Sasaki, R. Ulrich, Electron. Lett. 20, 906 (1984).
[CrossRef]

R. Ulrich, A. Simon, Appl. Opt. 18, 2241 (1979).
[CrossRef] [PubMed]

Yun, S. H.

Zyskind, J. L.

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Figures (4)

Fig. 1
Fig. 1

Schematic of the fiber laser cavity with a Faraday rotating mirror. M1, M2, planar mirrors; FR, Faraday rotator.

Fig. 2
Fig. 2

Experimental setup: WDM, wavelength-division multiplexer; PC, polarization controller.

Fig. 3
Fig. 3

(a) Polarization mode beat spectrum, (b) oscilloscope trace of the output signal from the fiber laser.

Fig. 4
Fig. 4

Experimental (slope, 10.24 kHz/A) results for the shift of polarization mode beat frequency as a function of current applied to the solenoid.

Equations (6)

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J FRM = [ 0 1 1 0 ] ,
J f K FRM J f T = [ 0 1 1 0 ] ,
J 1 = [ exp ( i δ 1 / 2 ) 0 0 exp ( i δ 1 / 2 ) ] .
J 2 = [ cos ( δ 2 / 2 ) + i cos 2 B sin ( δ 2 / 2 ) sin 2 B sin ( δ 2 / 2 ) sin 2 B sin ( δ 2 / 2 ) cos ( δ 2 / 2 ) i cos 2 B sin ( δ 2 / 2 ) ] ,
f P = c 2 π n l arccos ( α H l 2 sin δ 2 δ 2 ) ,
Δ f P c 2 π n l ( α H l 2 sin δ 2 δ 2 ) .

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