Optical catheter with double-clad fiber

Optical waveguides – With optical coupler – Input/output coupler

Reexamination Certificate

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C385S036000

Reexamination Certificate

active

06904199

ABSTRACT:
A double-clad fiber extends along an axis of a catheter. The fiber has a core and an annular cladding surrounding the core. A lens assembly has a first sub-aperture in optical communication with the core and a second sub-aperture in optical communication with the annular cladding.

REFERENCES:
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patent: 4593973 (1986-06-01), Yoshida et al.
patent: 4784144 (1988-11-01), Ono et al.
patent: 4896941 (1990-01-01), Hayashi et al.
patent: 5625459 (1997-04-01), Driver
patent: 6542665 (2003-04-01), Reed et al.
patent: 6654630 (2003-11-01), Zuluaga et al.
patent: 6757467 (2004-06-01), Rogers

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