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Optics Letters

| RAPID, SHORT PUBLICATIONS ON THE LATEST IN OPTICAL DISCOVERIES

  • Vol. 19, Iss. 23 — Dec. 1, 1994
  • pp: 1964–1966

Four-port fiber frequency shifter with a null taper coupler

T. A. Birks, S. G. Farwell, P. St. J. Russell, and C. N. Pannell  »View Author Affiliations


Optics Letters, Vol. 19, Issue 23, pp. 1964-1966 (1994)
http://dx.doi.org/10.1364/OL.19.001964


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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

History
Original Manuscript: March 10, 1994
Published: December 1, 1994

Citation
T. A. Birks, S. G. Farwell, P. St. J. Russell, and C. N. Pannell, "Four-port fiber frequency shifter with a null taper coupler," Opt. Lett. 19, 1964-1966 (1994)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-19-23-1964


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References

  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]

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