Several considerations of computer-generated hologram for optical interconnection of VLSI

Pin Long; Huafeng Zhang; Dahsiung Hsu

doi:10.1117/12.140340

24 April 1992 Several considerations of computer-generated hologram for optical interconnection of VLSI

Pin Long, Huafeng Zhang, Dahsiung Hsu

Proceedings Volume 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing; (1992) https://doi.org/10.1117/12.140340
Event: Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, 1991, Bishkek, Kirgizstan, Russian Federation

Abstract

This paper analyzes the noise caused by the quantization effects of computer generated holograms (CGHs). To utilize a fabrication that is compatible with VLSI processing techniques, a CGH having only two levels of phase is fabricated. The binarization not only reduces the maximum efficiency of CGH but also causes some optical noise which may lead to signal crosstalk. The maximum deflection angle of CGH is determined by the smallest written spot of the hardware. The divergence angle of semiconductor laser signal transmitter causes a decrease of the maximum deflection angle of the CGH. Here we present a way of increasing the maximum deflection angle by using the divergence angle of a semiconductor laser.

Citation Download Citation

Pin Long, Huafeng Zhang, and Dahsiung Hsu "Several considerations of computer-generated hologram for optical interconnection of VLSI", Proc. SPIE 1731, Soviet-Chinese Joint Seminar on Holography and Optical Information Processing, (24 April 1992); https://doi.org/10.1117/12.140340

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