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학술대회 Performance Evaluation of 100 Gb/s 16-QAM Alamouti-coded Optical Coherent System
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오정열, 문상록, 장순혁, 강헌식
International Conference on Information and Communication Technology Convergence (ICTC) 2022, pp.1811-1816
22HH8500, Tbps급 광통신 인프라 기술 개발, 강헌식
Alamouti polarization time block coding (PTBC) coherent optical technology has been drawing attention as a technology for future optical access networks because it enables a polarization insensitive simple coherent receiver without any polarization tracking. We compare and analyze a 100 Gb/s/{\\lambda} single-carrier 16-QAM Alamouti PTBC coherent system and a 100 Gb/s/{\\lambda} single-carrier 16-QAM polarization division multiplexed (PDM) coherent system about their performance under the conditions of the same data rates and the same optical access channel impairments. The Alamouti PTBC coherent system has performance degradations for a few impairments that degrade the orthogonality between the transmitted symbol pairs. Nevertheless, the Alamouti PTBC coherent system has little SNR penalty compare to PDM coherent system even in the worst case of optical access channel impairments.
KSP 제안 키워드
100 Gb/s, 16 quadrature amplitude modulation(16QAM), Block coding, Coherent receiver, Coherent system, Optical access network, Optical coherent, Performance evaluation, Polarization tracking, Single-carrier(SC), Time block