OSA's Digital Library

Optics Letters

Optics Letters


  • 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)

View Full Text Article

Enhanced HTML    Acrobat PDF (462 KB)

Browse Journals / Lookup Meetings

Browse by Journal and Year


Lookup Conference Papers

Close Browse Journals / Lookup Meetings

Article Tools



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

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

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)

Sort:  Author  |  Year  |  Journal  |  Reset  


  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]

Cited By

Alert me when this paper is cited

OSA is able to provide readers links to articles that cite this paper by participating in CrossRef's Cited-By Linking service. CrossRef includes content from more than 3000 publishers and societies. In addition to listing OSA journal articles that cite this paper, citing articles from other participating publishers will also be listed.


Fig. 1 Fig. 2 Fig. 3
Fig. 4 Fig. 5

« Previous Article  |  Next Article »

OSA is a member of CrossRef.

CrossCheck Deposited