OCULAR-II: Optical Interconnection Module

Japanese version is also available.

The Optical Interconnection Module (OI-module) is placed between two processing layers in OCULAR-II, that provides reconfigurable free-space optical interconnects. A custom designed Fourier Transform lens reduces the working distance of the lens system, that yields the compactness of the system. The introduction of a prism makes the OI-module to be cascadable where the optical beam from a VCSEL array in a processing layer is transfered to a photodetecdtor array that are placed at the opposite side of the VCSEL. The basic structure is shown in Fig. 1.

A Computer Generated Hologram (CGH) that is written on a spatial light modulator (SLM) installed in this optical interconnection module provides reconfigurable optical interconnections between processing layers. Fig. 2 shows an example of realized optical interconnections.

The works has been collaborative research with Hamamatsu Corporation .

References

1. H.Toyoda, Y.Kobayashi, N. Yoshida, Y. Igasaki, T. Hara, N. McArdle, M. Naruse, and M. Ishikawa: Compact optical interconnection module for OCULAR-II: a pipelined parallel processor Technical Digest of Optics in Computing '99 [pdf file(94k)]
2. N. McArdle, M. Naruse, M. Ishikawa, H. Toyoda, and Y. Kobayashi: Implementation of a Pipelined Optoelectronic Processor: OCULAR-II, Technical Digest of Optics in Computing '99 [pdf file(93k)]

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