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Heterodyne direct-detection OOFDM system with low sampling rate |
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| Authors: | Lin Cheng He Wen Xiaoping Zheng Hanyi Zhang Yili Guo State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science Technology |
| Institution: | Lin Cheng,He Wen,Xiaoping Zheng,Hanyi Zhang,and Yili Guo State Key Laboratory on Integrated Optoelectronics/Tsinghua National Laboratory for Information Science and Technology,Department of Electronic Engineering,Tsinghua University,Beijing 100084,China |
| Abstract: | A method of multi-channel receiving for high bit rate heterodyne direct-detection optical orthogonal frequency-division-multiplexing (OOFDM) system is proposed to reduce the sampling rate demand of analog-to-digital converter (ADC). The sampling rate of ADCs can be reduced to 1/N that of the original signal bandwidth in an N-channel receiving system. Aided by a succeeding digital signal processing (DSP) at the receiver, aliasing free signal can be recovered. A back-to-back experimental result is given for a... |
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