中国激光, 2018, 45 (9): 0906003, 网络出版: 2018-09-08
探测响应对时间交织光模数转换通道失配的影响 
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Effects of Photodetection Response on Channel Mismatches of Time-Interleaved Photonic Analog to Digital Conversion
图 & 表
图 1. 时间交织光模数转换系统结构示意图
Fig. 1. Schematic of time interleaved photonic analog-to-digital conversion system
图 2. 后端探测带宽为400 MHz时,增益失配校正前后的(a)SFDR和(b)两个通道的通道响应随输入信号频率的变化
Fig. 2. When photodetection bandwidth at the back end is 400 MHz, (a) SFDR of system and (b) channel response of two channels as a function of frequency of input signal with and without gain-mismatch correction
图 3. 后端探测带宽为400 MHz时,时间失配校正前后的(a) SFDR和(b)两个通道的通道响应随输入信号频率的变化
Fig. 3. When photodetection bandwidth at the back end is 400 MHz, (a) SFDR of system and (b) channel response of two channels as functions of frequency of input signal with and without time-mismatch correction
图 4. 后端探测带宽为50 MHz时,增益失配校正前后的(a) SFDR和(b)两个通道的通道响应随输入信号频率的变化
Fig. 4. When photodetection bandwidth at the back end is 50 MHz, (a) SFDR of system and (b) channel response of two channels as functions of frequency of input signal with and without gain-mismatch correction
图 5. 后端探测带宽为50 MHz时,时间失配校正前后的(a) SFDR和(b)两个通道的通道响应随输入信号频率的变化
Fig. 5. When photodetection bandwidth at the back end is 50 MHz, (a) SFDR of system and (b) channel response of two channels as functions of frequency of input signal with and without time-mismatch correction
图 6. 增益和时间失配校正前后的SFDR随(a)增益失配和(b)时间失配的变化
Fig. 6. SFDR of system before and after correction as a function of (a) gain mismatch and (b) time mismatch
图 7. 增益和时间失配校正前后的SFDR差值随探测带宽的变化
Fig. 7. Differences in SFDR before and after gain and time correction as a function of photodetection bandwidth
图 8. 四通道系统中,增益和时间失配下各通道响应随输入信号频率的变化。(a)探测带宽为400 MHz时的增益失配;(b)探测带宽为50 MHz时的增益失配;(c)探测带宽为400 MHz时的时间失配;(d)探测带宽为50 MHz时的时间失配
Fig. 8. Channel response of four-channel system as a function of frequency of input signal under gain mismatch and time mismatch. (a) Gain mismatch with photodetection bandwidth of 400 MHz; (b) gain mismatch with photodetection bandwidth of 50 MHz; (c) time mismatch with photodetection bandwidth of 400 MHz; (d) time mismatch with photodetection bandwidth of 50 MHz
薛翔, 吴龟灵, 陈建平. 探测响应对时间交织光模数转换通道失配的影响[J]. 中国激光, 2018, 45(9): 0906003. Xue Xiang, Wu Guiling, Chen Jianping. Effects of Photodetection Response on Channel Mismatches of Time-Interleaved Photonic Analog to Digital Conversion[J]. Chinese Journal of Lasers, 2018, 45(9): 0906003.
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