US PATENT SUBCLASS 65 / 399
.~.~ Incorporating dopant into porous body

Current as of: June, 1999
Click HD for Main Headings
Click for All Classes

Internet Version by PATENTEC © 1999      Terms of Use


65 /   HD   GLASS MANUFACTURING

376  DF  PROCESSES OF MANUFACTURING FIBERS, FILAMENTS, OR PREFORMS {18}
385  DF  .~ Process of manufacturing optical fibers, waveguides, or preforms thereof {29}
399.~.~ Incorporating dopant into porous body

DEFINITION

Classification: 65/399

Incorporating dopant into porous body:

(under subclass 385) Processes directed to a step of diffusing a small quantity of material into a porous material used during any stage of manufacturing the optical fiber, waveguide, or preform.

(1) Note. A dopant material in this art is generally used to alter the refractive index of an optical fiber, waveguide, or preform.