Multiple-core optical fibers and associated coupling methods

Details Multiple-core optical fibers and associated coupling methods Multiple-core optical fibers and associated coupling methods

1998-04-22

2000-12-12

Lee, John D.

Optical waveguides

Optical fiber waveguide with cladding

Utilizing multiple core or cladding

385 39, G02B 616, G02B 626

Patent

active

061609439

ABSTRACT:
An optical fiber has two or more cores with respective faces on the fiber's ends. The faces are preferably oriented so that optical radiation can be coupled into or out of the individual cores, thereby permitting, for example, optical radiation from the various cores to be spatially resolved in the far field. The faces can be formed on the fiber by polishing the fiber at an angle with respect to the cores, i.e., with respect to the optical paths traversed by the optical radiation passing through the fiber.

REFERENCES:
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patent: 5901261 (1999-05-01), Wach
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J. Arkwright, et al., "Enhanced Switching Speeds observed at 980 nm in neodymium doped twin-core fibre, using simulated downpumping at 1060 nm", Fiber Laser Sources and Amplifiers, SPIE vol. 2073, pp. 158-165, 1993 (no month).
P.L. Chu, et al., "Optical switching in twin-core erbium-doped fibers", Optics Letters, vol. 17, pp. 255-257.
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