Thomas W. Mossberg

Optical code-division multiple access (O-CDMA) interconnects and telecommunication networks based on temporally accessed spectral multiplexing (TASM)

A novel optical interconnect architecture based on temporally accessed spectral multiplexing (TASM) technology is presented. The use of TASM optical interconnects will be demonstrated in multiple access telecommunication applications. TASM technology builds on optical code- division multiple access concepts with promise of low cost implementation of Terabit/second optical networks. The use of TASM technology to enhance wavelength division multiplexing in optical communication systems will be discussed. The working principles and design of TASM system architectures will be presented with emphasis on the key functional component - the TASM encoder.

Implementation of optical dynamic RAM using spatially distributed spectral storage

Optical Dynamic RAM (ODRAM) is a high capacity, low latency optical memory architecture based on persistent spectral hole burning in frequency selective materials. This paper describes the basic ODRAM architecture and progress towards realization of a high capacity, low latency, tabletop demonstration unit. In particular, a new technique, Spatially Distributed Spectral Storage (SDSS) is introduced and demonstrated to provide over two orders of magnitude improvement in spectral capacity for materials that experience excitation induced frequency shifts. Finally, the relative strengths and weaknesses of ODRAM are emphasized in a competitive analysis that includes currently available memory technologies such as semiconductor DRAM and magnetic disks.