Optical waveguide lens and method of fabrication

Details Optical waveguide lens and method of fabrication Optical waveguide lens and method of fabrication

2007-06-05

2007-06-05

Prasad, Chandrika (Department: 2839)

Optical waveguides

With optical coupler

Input/output coupler

C385S033000

Reexamination Certificate

active

09812108

ABSTRACT:
A spherical lens formed by fusing a generally homogenous glass lens blank to the distal end of an optical fiber, heating and tensioning the lens blank to separate it in two segments with the segment attached to the optical fiber defining a tapered end, and heating the lens blank above its softening point so that the spherical lens forms. The lens blank is fabricated from a 4 weight percent borosilicate glass having a softening point less than that of the core of the optical fiber. The lens member defines a throat region adjacent the optical fiber whose cross-sectional dimension is substantially greater than the diameter of the optical fiber, but substantially less than the diameter of the spherical lens.

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