Optical coupling

Details Optical coupling Optical coupling

2006-07-11

2006-07-11

Connelly-Cushwa, Michelle (Department: 2874)

Optical waveguides

With optical coupler

Input/output coupler

C385S027000, C385S031000

Reexamination Certificate

active

07076133

ABSTRACT:
The invention relates to the coupling of light to and from an optical waveguide, such as an optical fiber. Light of a specific wavelength is deflected out from the fiber, or into the fiber, in a substantially transverse direction with respect to the propagation direction of light in the waveguide, by a deflector16arranged in the fiber core10.Wavelength selectivity of the deflector16is provided by a Bragg grating means located in the fiber core10.The deflected light is collimated, or converged towards a focus, by an interface15between a cladding11,having one index of refraction, and an outer medium12,having another index of refraction. The ratio between the radius of the cladding11and the radius of the core10made sufficiently small for the collimating, or converging, effect to appear.

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