Method of assembling multigrooved silicon chip fiber optic terminations

Abstract

Abstract Described is a method for assembling multi-fiber array connectors. V-grooved silicon chips (11 and 12) are placed in a holder (10) which allows the chips to "float" with respect to each other and adjust to varying fiber diameters. Once the fibers (31) are inserted, the chips are clamped and cemented together with the fibers fixed in the grooves. The opposite opening of the holder, as also seen in the view in FIG. 2 comprises a cantilevered section including a pair of cantilevered arms, 16 and 17. Each arm includes seats, 18 and 19, for loosely holding the top and bottom chips, 11 and 12, respectively. The seats have essentially the same length and width as the chips so that the chips will be aligned in the x and y directions. The separation of the cantilevered members, 16 and 17, however, is such as to leave a small gap, typically less than the fiber diameter, between the two facing surfaces of the chips. Further, since the cantilevered arms are free to flex slightly and/or the chips are only loosely mounted in the vertical (z) direction, the gap between chips can vary as the fiber array is inserted therein. Thus, the chips "float" within the holder to allow the chips to be aligned by the fibers and to compensate for any variations in fiber diameter. The holder is typically plastic made by a standard molding process. Other materials could also be employed. The chips are inserted into the holder with the cantilevered section facing upward so that the chips fall into the seats, 18 and 19. The end of the cantilevered section is then deformed, in this example by heating, so that dimples, 24 and 25, are formed to keep the chips within the holder while maintaining the loose retention of the chips between the cantilevered members, 16 and 17.

Inventors

• 👤 Rocco Bonanni
• 👤 William Joseph Parzygnat
• 👤 Roger Edward Weiss

Bibliographic Details