Title :
Optical precoding technologies with high-speed DAC at 40G or beyond
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
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.
Keywords :
digital signal processing chips; digital-analogue conversion; multiplexing equipment; optical communication equipment; optical modulation; precoding; bit rate 40 Gbit/s; digital signal processor; high-speed DAC; high-speed multiplexer; high-speed precoded transmission; interleaved DAC; next-generation high-order modulation systems; optical communications; optical precoding; Abstracts; BiCMOS integrated circuits; Clocks; Decoding; Multiplexing; Optical switches; Digital Signal Processing; Digital-to-Analog Converter; Modulation; Optical Communications;
Conference_Titel :
Communications and Photonics Conference and Exhibition, 2011. ACP. Asia
Conference_Location :
Shanghai
Print_ISBN :
978-0-8194-8961-6
