基于单环光电振荡的宽带二倍频信号产生方法
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摘要
提出了一种基于单环光电振荡器(OEO)的宽带二倍频信号产生方法。将射频(RF)信号经过第1级马赫-增德尔调制器(MZM)调制到光信号上,通过控制第1级MZM的偏置电压,使得其工作在最小传输点(MITP)上,产生的-1阶和+1阶边带信号通过第2级MZM注入到由单膜光纤(SMF)、光电检测器(PD)和电放大器(amplifier)组成的光电振荡环腔中,光电检测后产生二倍频信号,信号的频率稳定度由信号源的稳定度决定,信号的相位噪声由光电振荡环腔决定。在实验结构简单的条件下,有效实现了宽带二倍频信号产生。实验结果表明,当本文系统可以实现对C波段和X波段信号二倍频,输出信号的相位噪声在10kHz偏移处均低于-102dBc/Hz。
A kind of wideband frequency-doubling signal generation based on optoelectronic oscillator(OEO)is demonstrated in this paper.The radio frequency(RF)source is modulated on the optical signal with the first Mach-Zehnder modulator(MZM).The first MZM is biased at the minimum transmission point(MITP)to eliminate the-1and+1sidebands.The optical signal is sent to the second MZM and the optoelectronic loop which consists of the single mode fiber(SMF),photodetector(PD)and RF amplifier.The frequency-doubling signal is generated by the PD,the frequency stability of the generated signal is determined by the RF source,and the phase noise is controlled by the optoelectronic loop.The generation of the wideband frequency-doubling signal is realized with a single experiment structure.In the experiment,C band and X band signals can implement frequency doubling with the system and the phase noise of the generated signal is lower than-102dBc/Hz at 10 kHz.
A kind of wideband frequency-doubling signal generation based on optoelectronic oscillator(OEO)is demonstrated in this paper.The radio frequency(RF)source is modulated on the optical signal with the first Mach-Zehnder modulator(MZM).The first MZM is biased at the minimum transmission point(MITP)to eliminate the-1and+1sidebands.The optical signal is sent to the second MZM and the optoelectronic loop which consists of the single mode fiber(SMF),photodetector(PD)and RF amplifier.The frequency-doubling signal is generated by the PD,the frequency stability of the generated signal is determined by the RF source,and the phase noise is controlled by the optoelectronic loop.The generation of the wideband frequency-doubling signal is realized with a single experiment structure.In the experiment,C band and X band signals can implement frequency doubling with the system and the phase noise of the generated signal is lower than-102dBc/Hz at 10 kHz.
引文
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[29]WEI Zhi-hu,WANG Rong,FANG Tao,et al.A tunable optoelectronic oscillator based on the non-linear dispersion compensation fiber Bragg grating[J].Journal of Optoelectronics·Laser,2012,23(9):1649-1653.魏志虎,王荣,方涛,等.基于非线性色散补偿光栅的可调谐光电振荡器[J].光电子·激光,2012,23(9):1649-1653.
[2]Xie X,Li K,Shen Y,et al.Photonic generation of highpower pulsed microwave signals[J].Journal of Lightwave Technology,2015,33(18):3808-3814.
[3]Yu L,Lu D,Sun Y,et al.Tunable photonic microwave generation by directly modulating a dual-wavelength amplified feedback laser[J].Optics Communications,2015,345:57-61.
[4]Chiba A,Akamatsu Y,Takada K.Optical two-tone signal generation without use of optical filter for photonics-assisted radio-frequency quadrupling[J].Optics letters,2015,40(15):3651-3654.
[5]Li W,Yao J.Microwave and terahertz generation based on photonically assisted microwave frequency twelvetupling with large tunability[J].Photonics Journal,IEEE,2010,2(6):954-959.
[6]Liu W,Wang M,Yao J.Tunable microwave and sub-terahertz generation based on frequency quadrupling using a single polarization modulator[J].Journal of Lightwave Technology,2013,31(10):1636-1644.
[7]Chen X,Li W,Yao J.Microwave photonic link with improved dynamic range using apolarization modulator[J].Photonics Technology Letters,IEEE,2013,25(14):1373-1376.
[8]Gao L,Liu W,Chen X,et al.Photonic-assisted microwave frequency multiplication with a tunable multiplication factor[J].Optics Letters,2013,38(21):4487-4490.
[9]Ramos R T,Seeds A J.Fast heterodyne optical phaselock loop using double quantum well laser diodes[J].Electronics Letters,1992,28(1):82-83.
[10]Bordonalli A C,Walton C,Seeds A J.High-performance phase locking of wide linewidth semiconductor lasers by combined use of optical injection locking and optical phase-lock loop[J].Journal of Lightwave Technology,1999,17(2):328.
[11]Zhao Y,Zheng X,Wen H,et al.Simplified optical millimeter-wave generation configuration by frequency quadrupling using two cascaded Mach-Zehnder modulators[J].Optics Letters,2009,34(21):3250-3252.
[12]Khurgin J B,Kang J U,Ding Y J.Ultrabroad-bandwidth electro-optic modulator based on a cascaded Bragg grating[J].Optics Letters,2000,25(1):70-72.
[13]Kim S K,Liu W,Pei Q,et al.Nonlinear intermodulation distortion suppression in coherent analog fiber optic link using electro-optic polymeric dual parallel Mach-Zehnder modulator[J].Optics Express,2011,19(8):7865-7871.
[14]Li C Y,Su H S,Chang C H,et al.Generation and transmission of BB/MW/MMW signals by cascading PM and MZM[J].Lightwave Technology,Journal of,2012,30(3):298-303.
[15]Wang L X,Li W,Wang H,et al.Photonic generation of phase coded microwave pulses using cascaded polarization modulators[J].Photonics Technology Letters,IEEE,2013,25(7):678-681.
[16]Gao Y,Wen A,Yu Q,et al.Microwave generation with photonic frequency sextupling based on cascaded modulators[J].Photonics Technology Letters,IEEE,2014,26(12):1199-1202.
[17]Li W,Wang L X,Zheng J Y,et al.Photonic MMW-UWB signal generation via DPMZM-based frequency up-conversion[J].Photonics Technology Letters,IEEE,2013,25(19):1875-1878.
[18]Yao X S,Maleki L,Eliyahu D.Progress in the opto-electronic oscillator-a ten year anniversary review[A].Proc.of Microwave Symposium Digest,2004 IEEE MTT-S International.IEEE[C].2004,1:287-290.
[19]Levy E C,Horowitz M,Menyuk C R.Modeling optoelectronic oscillators[J].J.Opt.Soc.AM.B,2009,26(1):148-159.
[20]Zou X,Li M,Pan W,et al.Optical length change measurement via RF frequency shift analysis of incoherent light source based optoelectronic oscillator[J].Optics Express,2014,22(9):11129-11139.
[21]Wang Q,Huo L,Xing Y,et al.Gaussian-like dual-wavelength prescaled clock recovery with simultaneous frequency-doubled clock recovery using an optoelectronic oscillator[J].Optics Express,2014,22(3):2798-2806.
[22]Tang Z,Zhang F,Pan S.Photonic microwave downconverter based on an optoelectronic oscillator using a single dual-drive Mach-Zehnder modulator[J].Optics Express,2014,22(1):305-310.
[23]Yang B,Jin X,Chen Y,et al.A tunable optoelectronic oscillator based on a dispersion-induced microwave photonic filter[J].IEEE Photonics Technology Letters,2013,25(10):921-924.
[24]Xiong J,Wang R,Fang T,et al.Low-cost and wideband frequency tunable optoelectronic oscillator based on a directly modulated distributed feedback semiconductor laser[J].Optics Letters,2013,38(20):4128-4130.
[25]Yao X S,Maleki L.Optoelectronic microwave oscillator[J].J.Opt.Soc.AM B,1996,13(8):1725-1735.
[26]Yao X S,Maleki L.Multiloop optoelectronic oscillator[J].IEEE Journal of Quantum Electronics,2000,36(1):79-84.
[27]TENG Yi-chao,WANG De-shuang,ZHANG Bao-fu,et al.The high frequency stability and low phase noise optoelectronic oscillator based on electric injection-locked of Rb atomic frequency standard[J].Journal of Optoelectronics·Laser,2013,24(12):2278-2282.滕义超,王德双,张宝富,等.基于Rb原子频标电注入锁定的高频稳低相噪光电振荡器[J].光电子·激光,2013,24(12):2278-2282.
[28]WEI Zhi-hu,WANG Rong,FANG Tao,et al.A tunable optoelectronic oscillator based on tunable true phase shift[J].Journal of Optoelectronics·Laser,2013,24(3):429-433.魏志虎,王荣,方涛,等.基于可调谐真相移的可调谐光电振荡器[J].光电子·激光,2013,24(3):429-433.
[29]WEI Zhi-hu,WANG Rong,FANG Tao,et al.A tunable optoelectronic oscillator based on the non-linear dispersion compensation fiber Bragg grating[J].Journal of Optoelectronics·Laser,2012,23(9):1649-1653.魏志虎,王荣,方涛,等.基于非线性色散补偿光栅的可调谐光电振荡器[J].光电子·激光,2012,23(9):1649-1653.