Lens function-including optical fiber and method of...

Details Lens function-including optical fiber and method of... Lens function-including optical fiber and method of...

2005-01-25

2005-01-25

Ullah, Akm Enayet (Department: 2874)

Optical waveguides

Optical fiber waveguide with cladding

With graded index core or cladding

C385S015000, C385S033000, C385S147000

Reexamination Certificate

active

06847770

ABSTRACT:
A lens function-including optical lens according to the present invention is constituted by: at least one step-index optical fiber; and at least one gradient index optical fiber having an outer diameter equal to that of the step-index optical fiber and having a periodic length exhibiting a lens function, the gradient index optical fiber being joined or attached to an end surface of the step-index optical fiber. The present invention is especially effective in a single mode optical fiber which is typical of the step-index optical fiber. The gradient index optical fiber can be produced by an ion exchange method.

REFERENCES:
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patent: 5371814 (1994-12-01), Ames et al.
patent: 5815614 (1998-09-01), Pan
patent: 5859717 (1999-01-01), Scobey et al.
patent: 6445939 (2002-09-01), Swanson et al.
patent: 60-91316 (1985-05-01), None
patent: WO 0058766 (2000-10-01), None
European Search Report dated Apr. 1, 2004.

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