Abstract

An all-fiber-optic frequency shifter is demonstrated that uses mode coupling between the LP01 and LP11 modes by a traveling acoustic flexural wave guided along the optical fiber. The input and output leads of this frequency shifter are single-mode fibers. Unity mode-conversion efficiency for cw operation is achieved at 8-MHz frequency shift with about 0.25 W of electrical input power. Carrier and image sideband suppression of 15 and 35 dB, respectively, are demonstrated.

© 1986 Optical Society of America

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References

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  1. K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
    [CrossRef]
  2. W. P. Risk, R. C. Youngquist, G. S. Kino, H. J. Shaw, Opt. Lett. 9, 309 (1984).
    [CrossRef] [PubMed]
  3. K. K. Wong, R. M. De La Rue, S. Wright, Opt. Lett. 7, 546 (1982).
    [CrossRef] [PubMed]
  4. F. Heismann, R. Ulrich, Appl. Phys. Lett. 45, 490 (1984).
    [CrossRef]
  5. L. M. Johnson, Proc. Soc. Photo-Opt. Instrum. Eng. 566, 96 (1985).
  6. H. F. Taylor, J. Lightwave Technol. LT-2, 617 (1984).
    [CrossRef]
  7. J. N. Blake, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 177 (1986).
    [CrossRef] [PubMed]
  8. W. V. Sorin, B. Y. Kim, H. J. Shaw, “Highly selective evanescent modal filter for two-mode optical fibers,” submitted to Opt. Lett.
  9. W. V. Sorin, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 106 (1986).
    [CrossRef] [PubMed]

1986 (2)

1985 (1)

L. M. Johnson, Proc. Soc. Photo-Opt. Instrum. Eng. 566, 96 (1985).

1984 (3)

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

F. Heismann, R. Ulrich, Appl. Phys. Lett. 45, 490 (1984).
[CrossRef]

W. P. Risk, R. C. Youngquist, G. S. Kino, H. J. Shaw, Opt. Lett. 9, 309 (1984).
[CrossRef] [PubMed]

1983 (1)

K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
[CrossRef]

1982 (1)

Blake, J. N.

De La Rue, R. M.

Heismann, F.

F. Heismann, R. Ulrich, Appl. Phys. Lett. 45, 490 (1984).
[CrossRef]

Johnson, L. M.

L. M. Johnson, Proc. Soc. Photo-Opt. Instrum. Eng. 566, 96 (1985).

Kim, B. Y.

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

W. V. Sorin, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 106 (1986).
[CrossRef] [PubMed]

W. V. Sorin, B. Y. Kim, H. J. Shaw, “Highly selective evanescent modal filter for two-mode optical fibers,” submitted to Opt. Lett.

Kino, G. S.

Nosu, K.

K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
[CrossRef]

Rashleigh, S. C.

K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
[CrossRef]

Risk, W. P.

Shaw, H. J.

Sorin, W. V.

W. V. Sorin, B. Y. Kim, H. J. Shaw, Opt. Lett. 11, 106 (1986).
[CrossRef] [PubMed]

W. V. Sorin, B. Y. Kim, H. J. Shaw, “Highly selective evanescent modal filter for two-mode optical fibers,” submitted to Opt. Lett.

Taylor, H. F.

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

K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
[CrossRef]

Ulrich, R.

F. Heismann, R. Ulrich, Appl. Phys. Lett. 45, 490 (1984).
[CrossRef]

Weller, J. F.

K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
[CrossRef]

Wong, K. K.

Wright, S.

Youngquist, R. C.

Appl. Phys. Lett. (1)

F. Heismann, R. Ulrich, Appl. Phys. Lett. 45, 490 (1984).
[CrossRef]

Electron. Lett. (1)

K. Nosu, S. C. Rashleigh, H. F. Taylor, J. F. Weller, Electron. Lett. 19, 816 (1983).
[CrossRef]

J. Lightwave Technol. (1)

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

Opt. Lett. (4)

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

L. M. Johnson, Proc. Soc. Photo-Opt. Instrum. Eng. 566, 96 (1985).

Other (1)

W. V. Sorin, B. Y. Kim, H. J. Shaw, “Highly selective evanescent modal filter for two-mode optical fibers,” submitted to Opt. Lett.

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Figures (4)

Fig. 1
Fig. 1

(a) Schematic diagram of an all-fiber-optic frequency shifter with mode filters for the LP01 and LP11 modes and a traveling acoustic flexural wave. (b) Frequency shifting in a double-mode fiber using intermodal coupling by an acoustic flexural wave excited by an acoustic horn.

Fig. 2
Fig. 2

Far field radiation pattern showing mode conversion (LP01 mode to LP11 mode) due to the traveling acoustic flexural wave guided by an optical fiber.

Fig. 3
Fig. 3

Experimental setup for evaluation of the frequency shifter.

Fig. 4
Fig. 4

Experimental result showing the sideband suppression.

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