Abstract

We demonstrate a Faraday circulator or isolator that uses a silica-core, single-mode, birefringent fiber as the active medium and small permanent magnets for the magnetic field. Circulators were constructed for wavelengths of 632.8 and 830 nm using about 2 m of fiber. This is the first description to our knowledge of such potentially useful working devices made in birefringent fiber. Bandwidth and temperature dependence were also investigated.

© 1981 Optical Society of America

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References

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  1. J. F. Nye, Physical Properties of Crystals (Clarendon, Oxford, 1960), Chap. 14, pp. 266–268.
  2. R. H. Stolen, E. H. Turner, “Faraday rotation in highly birefringent optical fibers,” Appl. Opt. 19, 842 (1980).
    [CrossRef] [PubMed]
  3. It has been brought to our attention that similar (unpublished) results were found by A. Simon, “Kohärente Überlagerung von Wellentypen in vielwelligen optischen Wellenleitern” (Ph.D. Thesis, University of Stuttgart, 1978).
  4. E. H. Turner, R. H. Stolen, “Coupled wave theory of Faraday rotation in birefringent fibers,” J. Appl. Phys. (submitted for publication).
  5. A. M. Smith, “Polarization and magnetooptic properties of single-mode optical fiber,” Appl. Opt. 17, 52 (1978).
    [CrossRef] [PubMed]
  6. V. Ramaswamy, R. H. Stolen, M. D. Divino, W. Pleibel, “Birefringence in elliptically clad borosilicate single-mode fibers,” Appl. Opt. 18, 4080 (1979).
    [CrossRef] [PubMed]
  7. B. D. H. Tellegen, “The gyrator, a new electric network element,” Philips Res. Rep. 3, 81 (1948).

1980 (1)

1979 (1)

1978 (1)

1948 (1)

B. D. H. Tellegen, “The gyrator, a new electric network element,” Philips Res. Rep. 3, 81 (1948).

Divino, M. D.

Nye, J. F.

J. F. Nye, Physical Properties of Crystals (Clarendon, Oxford, 1960), Chap. 14, pp. 266–268.

Pleibel, W.

Ramaswamy, V.

Simon, A.

It has been brought to our attention that similar (unpublished) results were found by A. Simon, “Kohärente Überlagerung von Wellentypen in vielwelligen optischen Wellenleitern” (Ph.D. Thesis, University of Stuttgart, 1978).

Smith, A. M.

Stolen, R. H.

Tellegen, B. D. H.

B. D. H. Tellegen, “The gyrator, a new electric network element,” Philips Res. Rep. 3, 81 (1948).

Turner, E. H.

R. H. Stolen, E. H. Turner, “Faraday rotation in highly birefringent optical fibers,” Appl. Opt. 19, 842 (1980).
[CrossRef] [PubMed]

E. H. Turner, R. H. Stolen, “Coupled wave theory of Faraday rotation in birefringent fibers,” J. Appl. Phys. (submitted for publication).

Appl. Opt. (3)

Philips Res. Rep. (1)

B. D. H. Tellegen, “The gyrator, a new electric network element,” Philips Res. Rep. 3, 81 (1948).

Other (3)

It has been brought to our attention that similar (unpublished) results were found by A. Simon, “Kohärente Überlagerung von Wellentypen in vielwelligen optischen Wellenleitern” (Ph.D. Thesis, University of Stuttgart, 1978).

E. H. Turner, R. H. Stolen, “Coupled wave theory of Faraday rotation in birefringent fibers,” J. Appl. Phys. (submitted for publication).

J. F. Nye, Physical Properties of Crystals (Clarendon, Oxford, 1960), Chap. 14, pp. 266–268.

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Figures (2)

Fig. 1
Fig. 1

Experimental setup for demonstrating circulator behavior. Inset a shows a typical magnet. Inset b shows the circulator sequence.

Fig. 2
Fig. 2

Smooth curve shows Py/Px versus temperature. Points at 0.25° intervals show calculated results. The values of dλ/λ on the abscissa are found by using dλ/λ = 2.6 × 10−3 dT.

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