Author :
Sugihara, T. ; Kobayashi, T. ; Konishi, Y. ; Hirano, S. ; Tsutsumi, K. ; Yamagishi, K. ; Ichikawa, T. ; Inoue, S. ; Kubo, K. ; Takahashi, Y. ; Goto, K. ; Fujimori, T. ; Uto, K. ; Yoshida, T. ; Sawada, K. ; Kametani, S. ; Bessho, H. ; Inoue, T. ; Koguchi,
Author_Institution :
Inf. Technol. R&D Center, Mitsubishi Electr. Corp., Kamakura, Japan
Abstract :
Electronic pre-equalization for 43 Gb/s DQPSK has been demonstrated for the first time. Waveform distortion caused by bandwidth narrowing to 18.1 GHz by cascaded 10 Gb/s ROADMs has been adequately pre-equalized by a SiGe-BiCMOS LSI with 6-bit, 43 GS/s digital-to-analog converters.
Keywords :
CMOS integrated circuits; differential phase shift keying; digital-analogue conversion; filtering theory; quadrature phase shift keying; DAC integrated LSI; DQPSK pre-equalization; SiGe-BiCMOS LSI; cascaded ROADM filtering; digital-to-analog converters; electronic pre-equalization; reconfigurable optical add drop multiplexing; waveform distortion; Bandwidth; Filtering; Large scale integration; Optical distortion; Optical fiber communication; Optical filters; Optical modulation; Optical receivers; Optical transmitters; Wavelength division multiplexing;
Conference_Titel :
Optical Fiber Communication (OFC), collocated National Fiber Optic Engineers Conference, 2010 Conference on (OFC/NFOEC)
