Optical precoding technologies with high-speed DAC at 40G or beyond

T. Sugihara

doi:10.1117/12.900443

9 December 2011 Optical precoding technologies with high-speed DAC at 40G or beyond

T. Sugihara

Proceedings Volume 8309, Optical Transmission Systems, Subsystems, and Technologies IX; 83090F (2011) https://doi.org/10.1117/12.900443
Event: SPIE/OSA/IEEE Asia Communications and Photonics, 2011, Shanghai, China

Abstract

A precoding technology with a digital signal processor and high-speed DACs is a promising key enabler for realizing next-generation higher-order modulation systems. Achievement of a DAC operating speed of 40 GS/s or beyond is a prerequisite for high-speed precoded transmission. In this paper, the application of and the trends in optical precoding technology are reviewed. A high-speed DAC for optical communications at 40 Gb/s and beyond is introduced. To achieve a DAC suitable for digital signal processor based high order modulation, an interleaved DAC and a high-speed multiplexer are key technologies.

Citation Download Citation

T. Sugihara "Optical precoding technologies with high-speed DAC at 40G or beyond", Proc. SPIE 8309, Optical Transmission Systems, Subsystems, and Technologies IX, 83090F (9 December 2011); https://doi.org/10.1117/12.900443

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