Abstract

We demonstrate an optical filter that utilizes acousto-optic coupling between the spatial modes that propagate in a two-mode elliptical-core fiber. The optical bandwidth at 1090 nm is 0.85 nm, which is in agreement with predictions based on measurement of differential group delay between the modes. The filter is slightly polarization dependent, with a 0.28-nm wavelength difference between the passband peaks for the two polarization eigenstates. The optical insertion loss is dominated by 2–4-dB bending loss in nonoptimized mode strippers, and the coupling loss is negligible. Full acousto-optic mode conversion was achieved at an 8-mW electrical input power to the acoustic transducer.

© 1995 Optical Society of America

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References

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  1. D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
    [Crossref]
  2. W. P. Risk, G. S. Kino, B. T. Khuri-Yakub, Opt. Lett. 11, 578 (1986).
    [Crossref] [PubMed]
  3. J. N. Blake, P. Siemsen, in Proceedings of Ninth Optical Fibre Sensors Conference (Istituto di Ricerca sulle Onde Elettromagnetiche de Consiglio Nazionale delle Ricerche, Firenze, 1993), p. 301.
  4. A. Yariv, P. Yeh, Optical Waves in Crystals (Wiley, New York, 1984), p. 186.
  5. J. N. Blake, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 177 (1986).
    [Crossref] [PubMed]
  6. H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
    [Crossref]
  7. D. Östling, H. E. Engan, Opt. Lett. 20, 219 (1995).
    [Crossref] [PubMed]
  8. H. F. Taylor, J. Lightwave Technol. LT-2, 617 (1984).
    [Crossref]
  9. H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).
  10. W. R. Trutna, D. W. Dolfi, C. A. Flory, Opt. Lett. 18, 28 (1993).
    [Crossref] [PubMed]
  11. S. H. Yun, I. K. Hwang, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 8 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), p. 186.

1995 (1)

1994 (1)

H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).

1993 (1)

1990 (1)

D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
[Crossref]

1988 (1)

H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
[Crossref]

1986 (2)

1984 (1)

H. F. Taylor, J. Lightwave Technol. LT-2, 617 (1984).
[Crossref]

Askautrud, J. O.

H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).

Baran, J. E.

D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
[Crossref]

Blake, J. N.

H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
[Crossref]

J. N. Blake, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 177 (1986).
[Crossref] [PubMed]

J. N. Blake, P. Siemsen, in Proceedings of Ninth Optical Fibre Sensors Conference (Istituto di Ricerca sulle Onde Elettromagnetiche de Consiglio Nazionale delle Ricerche, Firenze, 1993), p. 301.

Cheung, K. W.

D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
[Crossref]

Dolfi, D. W.

Engan, H. E.

D. Östling, H. E. Engan, Opt. Lett. 20, 219 (1995).
[Crossref] [PubMed]

H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).

H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
[Crossref]

Flory, C. A.

Hwang, I. K.

S. H. Yun, I. K. Hwang, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 8 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), p. 186.

Johnson, J. J.

D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
[Crossref]

Khuri-Yakub, B. T.

Kim, B. Y.

H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
[Crossref]

J. N. Blake, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 177 (1986).
[Crossref] [PubMed]

S. H. Yun, I. K. Hwang, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 8 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), p. 186.

Kino, G. S.

Kval, P. O.

H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).

Östling, D.

D. Östling, H. E. Engan, Opt. Lett. 20, 219 (1995).
[Crossref] [PubMed]

H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).

Risk, W. P.

Shaw, H. J.

H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
[Crossref]

J. N. Blake, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 177 (1986).
[Crossref] [PubMed]

Siemsen, P.

J. N. Blake, P. Siemsen, in Proceedings of Ninth Optical Fibre Sensors Conference (Istituto di Ricerca sulle Onde Elettromagnetiche de Consiglio Nazionale delle Ricerche, Firenze, 1993), p. 301.

Smith, D. A.

D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
[Crossref]

Taylor, H. F.

H. F. Taylor, J. Lightwave Technol. LT-2, 617 (1984).
[Crossref]

Trutna, W. R.

Yariv, A.

A. Yariv, P. Yeh, Optical Waves in Crystals (Wiley, New York, 1984), p. 186.

Yeh, P.

A. Yariv, P. Yeh, Optical Waves in Crystals (Wiley, New York, 1984), p. 186.

Yun, S. H.

S. H. Yun, I. K. Hwang, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 8 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), p. 186.

IEEE J. Select. Areas Commun. (1)

D. A. Smith, J. E. Baran, J. J. Johnson, K. W. Cheung, IEEE J. Select. Areas Commun. 8, 1151 (1990).
[Crossref]

J. Lightwave Technol. (2)

H. E. Engan, B. Y. Kim, J. N. Blake, H. J. Shaw, J. Lightwave Technol. 6, 428 (1988).
[Crossref]

H. F. Taylor, J. Lightwave Technol. LT-2, 617 (1984).
[Crossref]

Opt. Lett. (4)

Proc. Soc. Photo-Opt. Instrum. Eng. (1)

H. E. Engan, D. Östling, P. O. Kval, J. O. Askautrud, Proc. Soc. Photo-Opt. Instrum. Eng. 2360, 568 (1994).

Other (3)

J. N. Blake, P. Siemsen, in Proceedings of Ninth Optical Fibre Sensors Conference (Istituto di Ricerca sulle Onde Elettromagnetiche de Consiglio Nazionale delle Ricerche, Firenze, 1993), p. 301.

A. Yariv, P. Yeh, Optical Waves in Crystals (Wiley, New York, 1984), p. 186.

S. H. Yun, I. K. Hwang, B. Y. Kim, in Optical Fiber Communications Conference, Vol. 8 of 1995 OSA Technical Digest Series (Optical Society of America, Washington, D.C., 1995), p. 186.

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Figures (3)

Fig. 1
Fig. 1

Schematic of the two-mode acousto-optic filter.

Fig. 2
Fig. 2

Normalized transmission of the acousto-optic filter for different acoustic frequencies.

Fig. 3
Fig. 3

Normalized transmission of a notch filter for the two polarization eigenstates in the fiber.

Equations (5)

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η = κ 0 2 κ 0 2 + δ 2 sin 2 [ L ( κ 0 2 + δ 2 ) 1 / 2 ] ,
δ = π [ 1 L B ( λ ) - 1 Λ ] = π [ 1 L B ( λ ) - 1 L B ( λ 0 ) ] .
Δ λ 0.8 L c [ L B ( λ 0 ) λ ] - 1 [ L B ( λ 0 ) ] 2 .
Δ τ g = L ( β 11 ω - β 01 ω ) = L c L B ( λ ) λ [ λ L B ( λ ) ] 2 .
Δ λ Δ τ g = 0.8 c λ 0 2 L L c .

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