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Optics Letters

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  • Vol. 20, Iss. 10 — May. 15, 1995
  • pp: 1125–1127

Photorefractive spatial mode converter for multimode-to-single-mode fiber-optic coupling

Arthur Chiou, Pochi Yeh, Changxi Yang, and Claire Gu  »View Author Affiliations


Optics Letters, Vol. 20, Issue 10, pp. 1125-1127 (1995)
http://dx.doi.org/10.1364/OL.20.001125


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Abstract

We report what is to our knowledge the first experimental demonstration of a photorefractive spatial mode converter (based on mutually pumped phase conjugation) that couples light efficiently from a multimode fiber into a single-mode fiber with an extremely large degree of tolerance to misalignment. Using an argon laser (514.5 nm) and a barium titanate crystal, we have demonstrated that the laser light can be coupled from a multimode fiber (core diameter 100 μm, numerical aperture 0.37) into a single-mode fiber (core diameter 2.9 μm, numerical aperture 0.11), with an efficiency of ~15% and an alignment tolerance of ~100 μm. The coupling efficiency is more than 2 orders of magnitude, and the tolerance to misalignments is more than 30 times better than the corresponding values achievable by conventional techniques.

© 1995 Optical Society of America

History
Original Manuscript: December 19, 1994
Published: May 15, 1995

Citation
Arthur Chiou, Pochi Yeh, Claire Gu, and Changxi Yang, "Photorefractive spatial mode converter for multimode-to-single-mode fiber-optic coupling," Opt. Lett. 20, 1125-1127 (1995)
http://www.opticsinfobase.org/ol/abstract.cfm?URI=ol-20-10-1125


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References

  1. Q. B. He, in Photorefractive Materials, Effects, and Applications, P. Yeh, C. Gu, eds. (Society of Photo-Optical Instrumentation Engineers, Bellingham, Wash., 1993), pp. 59–75, and references cited therein.P. Yeh, Introduction to Photorefractive Nonlinear Optics (Wiley, New York, 1993), pp. 227–240.
  2. S. Weiss, S. Sternklar, B. Fischer, Opt. Lett. 12, 114 (1987). [CrossRef] [PubMed]
  3. Q. C. He, J. Shamir, J. G. Duthie, Appl. Opt. 28, 306 (1989). [CrossRef] [PubMed]
  4. J. Feinberg, J. Opt. Soc. Am. 72, 46 (1982). [CrossRef]
  5. P. Yeh, Appl. Opt. 28, 1961 (1989). [CrossRef] [PubMed]

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