Abstract

A method is described for the nondestructive determination of the state of polarization of the guided light at an arbitrary point along a single-mode fiber. The fiber is squeezed laterally with a small, periodic (75-Hz) force. The azimuth of the force is varied. The resulting elasto-optic polarization modulation is detected at the fiber end and is evaluated for the azimuth and ellipticity of the polarization at the point of modulation.

© 1981 Optical Society of America

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References

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  1. H. Harms, A. Papp, K. Kempter, Appl. Opt. 15, 799 (1976).
    [CrossRef] [PubMed]
  2. A. Simon, R. Ulrich, Appl. Phys. Lett. 31, 517 (1977).
    [CrossRef]
  3. R. Ulrich, A. Simon, Appl. Opt. 18, 2241 (1979).
    [CrossRef] [PubMed]
  4. Y. Namihira, M. Kudo, Y. Mushiako, Trans. Inst. Chem. Eng. 60C, 391 (1977).
  5. M. Johnson, Appl. Opt. 18, 1288 (1979).
    [CrossRef] [PubMed]
  6. G. N. Ramachandran, S. Ramaseshan, in Handbook of Physics, S. Flügge, ed. (Springer-Verlag, Berlin, 1961), Vol. 25/1, p. 1.
  7. R. Ulrich, Opt. Lett. 1, 109 (1977).
    [CrossRef] [PubMed]
  8. R. Ulrich, S. C. Rashleigh, Appl. Opt. 19, 2453 (1980).
    [CrossRef] [PubMed]
  9. M. Johnson, Opt. Lett. 5, 142 (1980).
    [CrossRef] [PubMed]

1980 (2)

1979 (2)

1977 (3)

Y. Namihira, M. Kudo, Y. Mushiako, Trans. Inst. Chem. Eng. 60C, 391 (1977).

A. Simon, R. Ulrich, Appl. Phys. Lett. 31, 517 (1977).
[CrossRef]

R. Ulrich, Opt. Lett. 1, 109 (1977).
[CrossRef] [PubMed]

1976 (1)

Harms, H.

Johnson, M.

Kempter, K.

Kudo, M.

Y. Namihira, M. Kudo, Y. Mushiako, Trans. Inst. Chem. Eng. 60C, 391 (1977).

Mushiako, Y.

Y. Namihira, M. Kudo, Y. Mushiako, Trans. Inst. Chem. Eng. 60C, 391 (1977).

Namihira, Y.

Y. Namihira, M. Kudo, Y. Mushiako, Trans. Inst. Chem. Eng. 60C, 391 (1977).

Papp, A.

Ramachandran, G. N.

G. N. Ramachandran, S. Ramaseshan, in Handbook of Physics, S. Flügge, ed. (Springer-Verlag, Berlin, 1961), Vol. 25/1, p. 1.

Ramaseshan, S.

G. N. Ramachandran, S. Ramaseshan, in Handbook of Physics, S. Flügge, ed. (Springer-Verlag, Berlin, 1961), Vol. 25/1, p. 1.

Rashleigh, S. C.

Simon, A.

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

A. Simon, R. Ulrich, Appl. Phys. Lett. 31, 517 (1977).
[CrossRef]

Ulrich, R.

Appl. Opt. (4)

Appl. Phys. Lett. (1)

A. Simon, R. Ulrich, Appl. Phys. Lett. 31, 517 (1977).
[CrossRef]

Opt. Lett. (2)

Trans. Inst. Chem. Eng. (1)

Y. Namihira, M. Kudo, Y. Mushiako, Trans. Inst. Chem. Eng. 60C, 391 (1977).

Other (1)

G. N. Ramachandran, S. Ramaseshan, in Handbook of Physics, S. Flügge, ed. (Springer-Verlag, Berlin, 1961), Vol. 25/1, p. 1.

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Figures (3)

Fig. 1
Fig. 1

(a) Cross section of the fiber. Equal, oppositely directed forces F squeeze the fiber between two jaws, inducing stress birefringence of azimuth ϕF relative to some arbitrary xyz coordinate system. (b) Variation of modulation amplitude |δC| versus azimuth ϕF.

Fig. 2
Fig. 2

Schematic of experimental arrangement. (a) Elasto-optic modulator, (b) optical setup and the |δC| detector. A’s are preamplifiers, PS is the phase shifter, and B is the balance control. For greater clarity, the modulator in (a) is shown rotated 90° out of the plane of (b).

Fig. 3
Fig. 3

Example of a measured characteristic of |δC| versus the azimuth of the applied force.

Equations (6)

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δ C = Ω × C ,
| δ C | = | Ω | sin γ .
sin γ = [ 1 cos 2 2 ψ cos 2 2 ( ϕ F ϕ ) ] 1 / 2 .
| δ C | min / | δ C | max = sin 2 | ψ | .
| Ω | 2 π ( l / λ ) ( δ n x δ n y ) ( π n 3 / 2 r λ E ) ( p 11 p 12 ) ( 1 + ν ) F .
| δ C ( X ) | = K ( S 0 2 + S 45 2 ) 1 / 2 ,

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