Title :
Influence of channel misalignment of time-interleaved DAC on sensitivity degradation in coherent optical receivers
Author :
Changyo Han ; Igarashi, Koji ; Kikuchi, Kazuro
Author_Institution :
Dept. of Electr. Eng. & Inf. Syst., Univ. of Tokyo, Tokyo, Japan
Abstract :
The time-interleaved architecture is indispensable for high-speed digital-to-analog converters (DACs) in coherent optical transmitters. After analyzing the impact of misalignment of time-interleaved channels, we measure receiver-sensitivity degradation by such misalignment using QPSK and 16-QAM signals.
Keywords :
channel allocation; digital-analogue conversion; light coherence; optical receivers; optical transmitters; quadrature phase shift keying; QAM signals; QPSK; channel misalignment; coherent optical receivers; coherent optical transmitters; high-speed digital-to-analog converters; receiver-sensitivity degradation; time-interleaved DAC; time-interleaved architecture; time-interleaved channels; Bit error rate; Degradation; Optical receivers; Optical transmitters; Phase shift keying; Radio frequency;
Conference_Titel :
Optical Fiber Communication Conference and Exposition and the National Fiber Optic Engineers Conference (OFC/NFOEC), 2013
Conference_Location :
Anaheim, CA
Print_ISBN :
978-1-4799-0457-0
