Abstract

A prototype of a new design of fiber frequency shifter, based on a special four-port fused taper coupler with a null maximum coupling ratio, is reported. In this coupler the constituent fibers are so dissimilar that the maximum coupling is (ideally) zero. In the presence of a flexural acoustic wave, light is coupled between the fibers, acquiring a frequency shift in the process. Near 100% conversion with 30-dB sideband and carrier suppression is achieved, in an unoptimized device, for just 1 mW of electrical drive power.

© 1994 Optical Society of America

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Errata

T. A. Birks, S. G. Farwell, P. St. J. Russell, and C. N. Pannell, "Four-port fiber frequency shifter with a null taper coupler: erratum," Opt. Lett. 21, 231-231 (1996)
https://www.osapublishing.org/ol/abstract.cfm?uri=ol-21-3-231

References

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  1. J. Blake, P. Siemsen, in Proceedings of Ninth Optical Fiber Sensors Conference (Firenze, Italy, 1993), p. 301.
  2. M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
    [CrossRef]
  3. H. Sabert, L. Dong, P. St. J. Russell, Int. J. Opto-electron. 7, 189 (1992).
  4. T. A. Birks, P. St. J. Russell, C. N. Pannell, IEEE Photon. Technol. Lett. 6, 725 (1994).
    [CrossRef]
  5. D. B. Mortimore, Electron. Lett. 21, 742 (1985).
    [CrossRef]
  6. W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
    [CrossRef]
  7. T. A. Birks, Y. W. Li, J. Lightwave Technol. 10, 432 (1992).
    [CrossRef]

1994 (1)

T. A. Birks, P. St. J. Russell, C. N. Pannell, IEEE Photon. Technol. Lett. 6, 725 (1994).
[CrossRef]

1992 (2)

H. Sabert, L. Dong, P. St. J. Russell, Int. J. Opto-electron. 7, 189 (1992).

T. A. Birks, Y. W. Li, J. Lightwave Technol. 10, 432 (1992).
[CrossRef]

1991 (1)

M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
[CrossRef]

1985 (1)

D. B. Mortimore, Electron. Lett. 21, 742 (1985).
[CrossRef]

1975 (1)

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

Berwick, M.

M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
[CrossRef]

Birks, T. A.

T. A. Birks, P. St. J. Russell, C. N. Pannell, IEEE Photon. Technol. Lett. 6, 725 (1994).
[CrossRef]

T. A. Birks, Y. W. Li, J. Lightwave Technol. 10, 432 (1992).
[CrossRef]

Blake, J.

J. Blake, P. Siemsen, in Proceedings of Ninth Optical Fiber Sensors Conference (Firenze, Italy, 1993), p. 301.

Burns, W. K.

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

Dong, L.

H. Sabert, L. Dong, P. St. J. Russell, Int. J. Opto-electron. 7, 189 (1992).

Jackson, D. A.

M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
[CrossRef]

Li, Y. W.

T. A. Birks, Y. W. Li, J. Lightwave Technol. 10, 432 (1992).
[CrossRef]

Milton, A. F.

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

Mortimore, D. B.

D. B. Mortimore, Electron. Lett. 21, 742 (1985).
[CrossRef]

Pannell, C. N.

T. A. Birks, P. St. J. Russell, C. N. Pannell, IEEE Photon. Technol. Lett. 6, 725 (1994).
[CrossRef]

M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
[CrossRef]

Russell, P. St. J.

T. A. Birks, P. St. J. Russell, C. N. Pannell, IEEE Photon. Technol. Lett. 6, 725 (1994).
[CrossRef]

H. Sabert, L. Dong, P. St. J. Russell, Int. J. Opto-electron. 7, 189 (1992).

M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
[CrossRef]

Sabert, H.

H. Sabert, L. Dong, P. St. J. Russell, Int. J. Opto-electron. 7, 189 (1992).

Siemsen, P.

J. Blake, P. Siemsen, in Proceedings of Ninth Optical Fiber Sensors Conference (Firenze, Italy, 1993), p. 301.

Electron. Lett. (2)

M. Berwick, C. N. Pannell, P. St. J. Russell, D. A. Jackson, Electron. Lett. 27, 713 (1991).
[CrossRef]

D. B. Mortimore, Electron. Lett. 21, 742 (1985).
[CrossRef]

IEEE J. Quantum Electron. (1)

W. K. Burns, A. F. Milton, IEEE J. Quantum Electron. QE-11, 32 (1975).
[CrossRef]

IEEE Photon. Technol. Lett. (1)

T. A. Birks, P. St. J. Russell, C. N. Pannell, IEEE Photon. Technol. Lett. 6, 725 (1994).
[CrossRef]

Int. J. Opto-electron. (1)

H. Sabert, L. Dong, P. St. J. Russell, Int. J. Opto-electron. 7, 189 (1992).

J. Lightwave Technol. (1)

T. A. Birks, Y. W. Li, J. Lightwave Technol. 10, 432 (1992).
[CrossRef]

Other (1)

J. Blake, P. Siemsen, in Proceedings of Ninth Optical Fiber Sensors Conference (Firenze, Italy, 1993), p. 301.

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Figures (5)

Fig. 1
Fig. 1

(a) Evolution of a light wave from one fiber through a passive null coupler, (b) the acousto-optic interaction in a null coupler.

Fig. 2
Fig. 2

Assembly pf the frequency shifter.

Fig. 3
Fig. 3

Throughput (circles) and coupled (squares) optical outputs of the frequency shifter versus rf drive voltage, for one input polarization state (filled symbols) and the orthogonal state (open symbols).

Fig. 4
Fig. 4

Rf spectrum of the detected beat signal between the frequency shifter’s coupled output and light upshifted by 80 MHz in a Bragg cell.

Fig. 5
Fig. 5

Normalized optical output spectra of the device for (a) throughout light and (b) coupled light.

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