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Applied Optics

Applied Optics


  • Vol. 30, Iss. 30 — Oct. 20, 1991
  • pp: 4379–4383

Selective mode injection and observation for few-mode fiber optics

Stuart Shaklan  »View Author Affiliations

Applied Optics, Vol. 30, Issue 30, pp. 4379-4383 (1991)

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By etching the cladding along several millimeters of circular- or elliptical-core few-mode fiber optics, we gain access to the core and can inject extremely pure modes. The same etching technique allows one to measure the modal purity at the far end of the fiber. Modal purities of −26 dB have been obtained. We also demonstrate a holographic technique that allows all the light of each mode to be focused to an independent spot.

© 1991 Optical Society of America

Original Manuscript: December 11, 1990
Published: October 20, 1991

Stuart Shaklan, "Selective mode injection and observation for few-mode fiber optics," Appl. Opt. 30, 4379-4383 (1991)

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  1. J. E. Midwinter, Optical Fibers for Transmission (Wiley, New York, 1979).
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  12. F. Louradour, A. Barthelemy, S. Shaklan, F. Reynaud, “Cross-phase modulation between modes of an optical fiber,” submitted to Opt. Commun.

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