Abstract

What we believe to be a novel fiber-optical inclinometer based on a dual-path core-to-cladding mode coupling mechanism is demonstrated. Both the amplitude and tilt direction of bends about a 2-mm-long flexure joint in an optical fiber can be determined. The sensor head consists of a nonadiabatic abrupt taper cascaded with a weakly tilted fiber Bragg grating. Measured bend angles of up to 12° are demonstrated, as well as a method to increase the sensitivity for bend angles smaller than 4°.

© 2010 Optical Society of America

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[CrossRef]

Y. He and F. G. Shi, Opt. Commun. 260, 127 (2006).
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2002

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S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

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J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
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Albert, J.

Araújo, F. M.

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H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
[CrossRef]

Benouaich, D.

S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

Black, R. J.

J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

Bobb, L. C.

L. C. Bobb, P. M. Shankar, and H. D. Krumboltz, J. Lightwave Technol. 8, 1084 (1990).
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Chan, C. C.

H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
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Y. X. Jin, C. C. Chan, X. Y. Dong, and Y. F. Zhang, Opt. Commun. 282, 3905 (2009).
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Chan, C. -F.

Chen, C.

Clément, D.

S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

Dong, X.

H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
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Dong, X. Y.

Y. X. Jin, C. C. Chan, X. Y. Dong, and Y. F. Zhang, Opt. Commun. 282, 3905 (2009).
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Fabris, J. L.

Falate, R.

Ferreira, L. A.

Frazão, O.

Gonthier, F.

J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

Guo, T.

He, Y.

Y. He and F. G. Shi, Opt. Commun. 260, 127 (2006).
[CrossRef]

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J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

J. D. Love and W. M. Henry, Electron. Lett. 22, 912 (1986).
[CrossRef]

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S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

Ivanov, A.

Jafari, A.

Jeong, Y.

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Y. X. Jin, C. C. Chan, X. Y. Dong, and Y. F. Zhang, Opt. Commun. 282, 3905 (2009).
[CrossRef]

Krueger, G.

S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

Krug, P. A.

Krumboltz, H. D.

L. C. Bobb, P. M. Shankar, and H. D. Krumboltz, J. Lightwave Technol. 8, 1084 (1990).
[CrossRef]

Lacroix, S.

J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

Laronche, A.

Lee, B.

Love, J. D.

J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

J. D. Love and W. M. Henry, Electron. Lett. 22, 912 (1986).
[CrossRef]

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Shankar, P. M.

L. C. Bobb, P. M. Shankar, and H. D. Krumboltz, J. Lightwave Technol. 8, 1084 (1990).
[CrossRef]

Shao, L. Y.

H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
[CrossRef]

Shao, L. -Y.

Shi, F. G.

Y. He and F. G. Shi, Opt. Commun. 260, 127 (2006).
[CrossRef]

Shum, P.

H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
[CrossRef]

Stewart, W. J.

J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

Tam, H. -Y.

Thomson, D. J.

Vurpillot, S.

S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

Zhang, Y. F.

Y. X. Jin, C. C. Chan, X. Y. Dong, and Y. F. Zhang, Opt. Commun. 282, 3905 (2009).
[CrossRef]

Zhao, C.

H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
[CrossRef]

ACI Struct. J.

S. Vurpillot, G. Krueger, D. Benouaich, D. Clément, and D. Inaudi, ACI Struct. J. 95, 518 (1998).

Appl. Opt.

Electron. Lett.

C. Chen and J. Albert, Electron. Lett. 42, 1027 (2006).
[CrossRef]

J. D. Love and W. M. Henry, Electron. Lett. 22, 912 (1986).
[CrossRef]

IEE Proc.-J: Optoelectron.

J. D. Love, W. M. Henry, W. J. Stewart, R. J. Black, S. Lacroix, and F. Gonthier, IEE Proc.-J: Optoelectron. 138, 343 (1991).
[CrossRef]

J. Lightwave Technol.

L. C. Bobb, P. M. Shankar, and H. D. Krumboltz, J. Lightwave Technol. 8, 1084 (1990).
[CrossRef]

Opt. Commun.

H. Bao, X. Dong, C. Zhao, L. Y. Shao, C. C. Chan, and P. Shum, Opt. Commun. 283, 968 (2010).
[CrossRef]

Y. He and F. G. Shi, Opt. Commun. 260, 127 (2006).
[CrossRef]

Y. X. Jin, C. C. Chan, X. Y. Dong, and Y. F. Zhang, Opt. Commun. 282, 3905 (2009).
[CrossRef]

Opt. Express

Opt. Lett.

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Figures (3)

Fig. 1
Fig. 1

(a) A microscope photo of the fused taper with a waist diameter of 66.7 μ m . (b) Reflection and transmission spectra of a concatenated taper and TFBG. (c) Schematic diagram of the proposed sensor.

Fig. 2
Fig. 2

Reflection spectra evolution against the bend angle.

Fig. 3
Fig. 3

Reflection power changes against the bend angle for several passbands and bend orientations: P B is core mode band; P C 1 is wide cladding mode band; P C 2 is narrow cladding mode band; Max and Min correspond to the bending orientations that yield maximum and minimum sensitivities.

Equations (2)

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P C i = 2 T t i ( θ ) [ 1 T t i ( θ ) ] C i ( φ ) ,
P B = [ T t 0 ( θ ) ] 2 R B 0 ,

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