Fiber optic, coupling apparatus having means for preventing ther

Details Fiber optic, coupling apparatus having means for preventing ther Fiber optic, coupling apparatus having means for preventing ther

1994-06-20

1995-09-19

Bovernick, Rodney B.

Optical waveguides

With disengagable mechanical connector

Optical fiber to a nonfiber optical device connector

385 84, G02B 636

Patent

active

054523923

ABSTRACT:
The present invention provides a fiber optic coupling apparatus for coupling light from a high power light source into a fiber optic while preventing thermal damage to the fiber optic at the fiber-to-light source coupling. The light source comprises a housing having a fiber input structure with inner surfaces defining a through-hole for receiving the fiber optic. The fiber input structure has outer surfaces which define a substantially conical profile of the structure that extends within the housing such that an axis of symmetry of the fiber input structure is substantially coincident with the light input to the fiber optic. The fiber input structure is further made from a high heat conductivity material and has a reflective coating on an input end face for reflecting light that is outside the acceptance angle of the fiber optic, but incident upon the fiber input structure. An elongated, fiber support tube made from a high heat conductivity material is disposed around the fiber optic and extends freely within an internal cavity of the fiber input structure to isolate the fiber optic from the inner surfaces of the fiber input structure and to direct thermal energy away from the fiber-to-light source coupling.

REFERENCES:
patent: 4639077 (1987-01-01), Dobler
patent: 5179610 (1993-01-01), Milburn et al.
patent: 5274723 (1993-12-01), Komatsu

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