摘要
基于外调制器的光子毫米波生成技术具有频率调谐范围大、结构简单、稳定性强和信号频率纯度高等优点,被认为是实现高频宽带可调毫米波信号产生的有效解决方法。对基于一种双平行马赫-曾德尔调制器(DPMZM)的光子倍频毫米波生成技术进行系统的理论分析,给出了实现四倍频、六倍频、八倍频毫米波产生的参数条件,在此基础上提出了一种不需要利用电相移器和光滤波器的四倍频毫米波产生方案,讨论了DPMZM消光比和调制深度对光子倍频毫米波生成的影响。
Photonic millimeter-wave frequency multiplication based on external modulation is considered as an attractive solution for high-frequency and frequency-tunable millimeter-wave signal generation due to its simplicity and stability, in addition to the large frequency tunability, and high spectral purity of the generated millimeter-wave signal. A generalized approach to achieve microwave frequency-multiplying generation based on external modulation using a dual-parallel Mach-Zehnder modulator （DPMZM） is presented. A theoretical analysis is developed, and the operating conditions are given to achieve frequency quadrupling, sextupling, and octupling millimeter-wave generation. Finally, a novel scheme for photonic generation of frequency quadrupling millimeter-wave signal without wideband microwave phase shifter and optical filter is proposed. The impact of the finite extinction ratio （ER） and modulation index of DPMZM on the generated millimeter-wave signal is also evaluated.
出处
《光学学报》
EI
CAS
CSCD
北大核心
2014年第3期71-78,共8页
Acta Optica Sinica
基金
国家自然科学基金(60807003)
北京高等学校青年英才计划项目(YETP0528)
新世纪优秀人才支持计划(NCET-09-0209)
关键词
光纤光学
光子毫米波生成
倍频
双平行马赫-曾德尔调制器
fiber optics
photonic millimeter-wave generation
frequency multiplication
dual-parallel Mach-Zehnder modulator
