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公开(公告)号:US08320720B2
公开(公告)日:2012-11-27
申请号:US12856144
申请日:2010-08-13
申请人: Mark Webster , Anujit Shastri , Kalpendu Shastri
发明人: Mark Webster , Anujit Shastri , Kalpendu Shastri
IPC分类号: G02B6/12
CPC分类号: G02F1/0121 , G02F1/2257 , G02F2001/0152 , H04B10/5051 , H04B10/5053 , H04B10/5055 , H04B10/516
摘要: A silicon-based optical modulator is configured as a multi-segment device that utilizes a modified electrical data input signal format to address phase modulation nonlinearity and attenuation problems associated with free-carrier dispersion-based modulation. The modulator is formed to include M separate segments and a digital signal encoder is utilized to convert an N bit input data signal into a plurality of M drive signals for the M modulator segments, where M≧2N/2. The lengths of the modulator segments may also be adjusted to address the nonlinearity and attenuation problems. Additional phase adjustments may be utilized at the output of the modulator (beyond the combining waveguide).
摘要翻译: 硅基光调制器被配置为多段装置,其利用修改的电数据输入信号格式来解决与自由载波色散调制相关的相位调制非线性和衰减问题。 调制器被形成为包括M个单独的段,并且使用数字信号编码器将N位输入数据信号转换成用于M个调制器段的多个M个驱动信号,其中M≥N2N / 2。 调制器段的长度也可以被调整以解决非线性和衰减问题。 可以在调制器的输出(超过组合波导)的情况下使用附加的相位调整。
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公开(公告)号:US20110044573A1
公开(公告)日:2011-02-24
申请号:US12856144
申请日:2010-08-13
申请人: Mark Webster , Anujit Shastri , Kalpendu Shastri
发明人: Mark Webster , Anujit Shastri , Kalpendu Shastri
IPC分类号: G02F1/035
CPC分类号: G02F1/0121 , G02F1/2257 , G02F2001/0152 , H04B10/5051 , H04B10/5053 , H04B10/5055 , H04B10/516
摘要: A silicon-based optical modulator is configured as a multi-segment device that utilizes a modified electrical data input signal format to address phase modulation nonlinearity and attenuation problems associated with free-carrier dispersion-based modulation. The modulator is formed to include M separate segments and a digital signal encoder is utilized to convert an N bit input data signal into a plurality of M drive signals for the M modulator segments, where M≧2N/2. The lengths of the modulator segments may also be adjusted to address the nonlinearity and attenuation problems. Additional phase adjustments may be utilized at the output of the modulator (beyond the combining waveguide).
摘要翻译: 硅基光调制器被配置为多段设备,其利用修改的电数据输入信号格式来解决与自由载波色散调制相关的相位调制非线性和衰减问题。 调制器被形成为包括M个单独的段,并且使用数字信号编码器将N位输入数据信号转换成用于M个调制器段的多个M个驱动信号,其中M≥N2N / 2。 调制器段的长度也可以被调整以解决非线性和衰减问题。 可以在调制器的输出(超过组合波导)的情况下使用附加的相位调整。
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