Multiple mode waveguide having cylindrical perturbations

G - Physics – 02 – B

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88/97.2

G02B 6/036 (2006.01) C03B 37/014 (2006.01) C03B 37/027 (2006.01) G02B 6/14 (2006.01)

Patent

CA 1099550

ABSTRACT OF THE DISCLOSURE A multiple mode optical waveguide includes a glass core and a glass cladding around the core. In order to promote coupling between guided modes of light propagation, the core has cylindrical perturbations spaced along its length. The perturbations include index of refraction variations in rings within the core. During manufacture, the waveguide perturbations are built up on a cylindrical bait by varying the composition of the soot which is deposited.

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