光通信研究Issue(4)：213-218,6.DOI:10.13756/j.gtxyj.2026.240251
可编程光倍频和光频梳产生方法研究
Study on Programmable Optical Frequency Multiplicationand Optical Frequency Comb Generation Methods
摘要
Abstract
[Objective]Conventional millimeter-wave mobile forward transmission systems usually utilize electronic devices to re-alize signal generation and processing,with their frequency bands and bandwidths limited by the"electronic bottleneck".Micro-wave photonics technologyhas the advantages oflow loss,high frequency,large bandwidth and reconfigurable,which can effective-ly break through the"electronic bottleneck".It alsoenable the generationand long-distance transmissionof high-speed wideband signals.However,current photogenerated millimeter-wave methods based on Electro-Optical Modulatier(EOM)are often com-plex in structureand difficult to control.[Methods]To address this problem,a programmable optical frequency multiplication and optical frequency comb generation method is proposed in this paper,with all optical functions integrated in a Dual-Polarization In-phase and Quadrature Modulator(DPIQM).Utilizing the automatic bias control technique based on digital chaotic dither and harmonic correlation detection,the DPIQM can be controlledat different bias states,allowing the generation of Optical Frequency Combs(OFC)with highflatness and optical frequencymultiplication signals with highsuppression ratio.[Results]A prototype is designed and experimentally demonstrated based on the proposed method in this paper.A 9-line OFC with a Free Spectral Range(FSR)of 8 GHz and a power flatness of up to 0.86 dB was experimentally generated.Optical frequency multiplication signals of 1st to 4th order with an FSR of 2 to 4 GHz and a harmonic rejection ratio of more than 13 dB were also generated.In addition,the generated OFC and optical frequency multiplication signals were also experimentally proven to haveexcellent phase noise charac-teristics.The phase noise of the electrical signal obtained by beating the 4th order optical frequency multiplication signal is lower than-115 dBc/Hz@1 MHz.[Conclusion]The programmable optical frequency multiplication and OFC generation method pro-vided in this paperis integrated in function,compact in structure,flexible in control,convenient in adjustment,and can realizemil-limeter-wave signal with up to 8 folds of frequency multiplication.Ithasimportant practicalsignificanceto expand the bandwidth and rate of future multi-band millimeter-wave communication systems.关键词
光频梳/光倍频/电光调制器/偏置点控制Key words
OFC/optical frequency multiplication/EOM/bias point control分类
信息技术与安全科学引用本文复制引用
徐恺,黄瑶玲,姚兵,万泉,段施奇,赵诗雅,邓磊..可编程光倍频和光频梳产生方法研究[J].光通信研究,2026,(4):213-218,6.基金项目
国网湖北直流公司科技资助项目(B7152124003C) （B7152124003C）
