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Conference Paper
Digital Signal Processing in 112-Gb/s Polarization-Multiplexed 16-QAM Coherent Optical Receiver
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- Authors
- Sun Hyok Chang, Hwan Seok Chung, Kwangjoon Kim
- Issue Date
- 2011-09
- Citation
- International Conference on Information and Communication Technology Convergence (ICTC) 2011, pp.350-351
- Publisher
- IEEE
- Language
- English
- Type
- Conference Paper
- Abstract
- In this paper, we discuss digital signal processing methods and its impacts in 112-Gb/s polarization-division-multiplexed 16-ary quadrature amplitude modulation (PDM 16-QAM) coherent optical receiver. Impacts of in-phase/quadrature-mismatch (IQ-mismatch) in the receiver are investigated and the IQ-mismatch compensation by digital signal processing is examined. We also analyze a 16-QAM optical signal generated by applying four-level electrical signals to single in-phase/ quadrature (IQ)-modulator. © 2011 IEEE.
- KSP Keywords
- 16-ary quadrature amplitude modulation(16QAM), Coherent Optical Receiver, Digital signal processing methods, Electrical signal, IQ mismatch, In-phase, Mismatch compensation, Optical signal, Quadrature Amplitude Modulation(QAM)