摘要
提出并实现了一种新的产生毫米波的六倍频技术。采用两个相同的串联马赫-曾德电光调制器(MZM),调节第1个MZM调制器的偏置电压使其工作在最小传输模式,只输出奇次光谐波分量;调节第2个MZM调制器的偏置电压使其工作在最大传输模式,抑制所有的奇次光谐波分量。实验显示,采用10GHz的射频(RF)信号驱动这两台MZM调制器后,可输出60GHz的毫米波信号,实现了频率的6倍频,并且输出的信号经过50km光纤传输后,受到色散影响小。
We propose and investigate a novel technique for the generation of millimeter-wave （mm-wave）,i, e. , frequency sixuplexing technique. The proposed technique adopts two cascaded Mach-Zehnder modulators （MZMs）. The first MZM,biased at minimum transmission,is only used for the odd-order optical harmonic generation, and then by using a second MZM, biased at maximum transmission, all odd- order optical harmonics are suppressed. As an example,we consider a radio frequency （RF） at 10 GHz, which drives the MZMs; and a ram-wave signal at 60 GHz, i. e. a frequency sixupler, is obtained. The generated ram-wave signal is robust to fiber chromatic dispersion. The proposed technique is verified by experiments.
出处
《光电子．激光》
EI
CAS
CSCD
北大核心
2011年第11期1646-1649,共4页
Journal of Optoelectronics·Laser
基金
国家自然科学基金重点资助项目(60977044)
