Paul Arthur Sachenik

Photochemically Machined, Glass Ceramic, Optical Fiber Interconnection Components

An optical fiber array interconnection substrate for computer applications was dgveloped based around a photomachinable glass-ceramic material having the trade name Fotofore% Devices incorporating up to 32 fibers on a single chip were shown to be possible, and the material was demonstrated to be patternable with accuracies approaching single crystal silicon. The glass-ceramic material has several advantages over silicon in that it is less brittle, can be easily loaded with fibers, and can be assembled using UV curable epoxies.

Photochemically processed glass-ceramic optical interconnects

The use of a photochemically processed glass-ceramic material, Fotoform, as a substrate for making optical-fiber-array interconnects for computer applications is discussed. The material is shown to be patternable with accuracies that approach that of single-crystal silicon. Results indicate that Fotoform has several advantages over silicon in that it is less brittle, can easily accommodate fibers, and can be assembled using ultraviolet-curable epoxies. Results for producing single-component arrays of from 6 to 32 multimode fibers are presented.<<ETX>>

Silicon oxynitride based scratch resistant anti-reflective coatings

Scratch resistant anti-reflective (SRAR) coatings were developed on Gorilla Glass substrates. A reactive magnetron sputtering process was employed to enable desired layer hardness and refractive index. Optical modeling was performed to determine the effective hardness of the SRAR coatings, in an effort to reduce reflectance in the visible while maintaining high scratch resistance. Scratch resistance was evaluated by using a nano-indentation test. Broadband AR coatings were realized. Potential applications of the SRAR coatings for AD optics were discussed.