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Optics Letters

Optics Letters


  • Vol. 21, Iss. 13 — Jul. 1, 1996
  • pp: 1006–1008

Coupled-mode propagation in multicore fibers characterized by optical low-coherence reflectometry

R. P. Salathé, H. Gilgen, and G. Bodmer  »View Author Affiliations

Optics Letters, Vol. 21, Issue 13, pp. 1006-1008 (1996)

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A fiber-optical low-coherence reflectometer has been used to probe a multicore fiber locally at a wavelength of 1.3 μm. This technique allows one to determine the group index of refraction of the modes in the multicore fiber with high accuracy. Light propagation that is due to noncoherent coupling of energy from one fiber core to adjacent cores through cladding modes can be distinguished quantitatively from light propagating in coherently coupled modes. Intercore coupling constants in the range of 0.6–2 mm−1 have been evaluated for the coupled modes.

© 1996 Optical Society of America

Original Manuscript: November 30, 1995
Published: July 1, 1996

R. P. Salathé, H. Gilgen, and G. Bodmer, "Coupled-mode propagation in multicore fibers characterized by optical low-coherence reflectometry," Opt. Lett. 21, 1006-1008 (1996)

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