| 应祥岳,徐铁峰,刘太君,文化锋,张秀普.基于双平行MZM和HNLF四波混频效应的24倍频光生毫米波技术[J].光电子激光,2016,27(8):814~818 |
| 基于双平行MZM和HNLF四波混频效应的24倍频光生毫米波技术 |
| Photonic generation of millimeter-wave signal via frequency 24-tupling based on dual-parallel MZM and four-wave-mixing in HNLF |
| 投稿时间：2015-11-30 |
| DOI： |
| 中文关键词: 光生毫米波 24倍频 双平行马赫-曾德尔调制器(DPMZM) 四波混频(FWM) 高非线性 光纤(HNLF) |
| 英文关键词:optical generation of millimeter-wave 24-tupled frequency dual-p arallel Mach-Zehnder modulator (DPMZM) four-wave mixing (FWM) highly-nonlin ea r fiber (HNLF) |
| 基金项目:国家自然科学基金(61371061)、浙江省教育厅项目(Y201533641)和浙江省“信息与通信工程”重中之重学科开放基金(xkxl1533)资助项目 |
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| 中文摘要: |
| 提出了一种基于双平行马赫-曾德尔调制器(DPMZM ) 和高非线性光纤(HNLF)四波混频(FWM)效应的24倍频光生毫米波方案。首先 通过控制DPMZM的 直流偏压、驱动信号相位差和调制指数,完全抑制光载波和±2阶边带,获得±4阶光边 带；再将其放大后输入到HNLF,通过FWM效应生成±12阶光边带,最后由光 电控制器(PD)拍 频得到24倍 频的毫米波输出。通过仿真,验证了方案的可行性。本文方案具有倍频次数高、频谱纯度好 等优点。 |
| 英文摘要: |
| Photonic generation of millimeter-wave (mm-wave) is very attractive for applications in radio-over-fiber for wireless communications,imaging,and r adio astronomy observations.A novel method based on dual-parallel Mach-Zehnder modulator (DPMZM) and four-wave-mixing (FWM) i n highly-nonlinear fiber (HNLF) is proposed for photonic generation of millimeter-wave signal with 24-t upled frequency.Firstly,the optical carrier and the ±2order optical side-bands are suppressed,while the ±4order optical side-bands are obtained by properly controlling the DC bias,modulation index of the DPMZM,a nd the phase shift of the phase shifter.Secondly,the ±4order optical side-bands are then injected int o the HNLF after erbium doped fiber amplifier (EDFA).The ±12order optical side-bands are generated due to FWM effect.After beating detecti on,a millimeter-wave signal with 24-tupled frequency is finally obtained.This proposed scheme is verified by si mulation.The technique has advantages of high frequency multiplication fact and high spectral purity. |
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