利用游标效应的两非相干光频梳混频产生全波段毫米波白噪声  

Generation of Full Band Millimeter-Wave White Noise Using Two Incoherent Optical Frequency Comb Mixing Base on Vernier Effect

作　　者：黄奕敏 刘文杰 郭亚 刘俊彬 张又文 孙粤辉[1] 程良伦[4] 王云才 Huang Yimin;Liu Wenjie;Guo Ya;Liu Junbin;Zhang Youwen;Sun Yuehui;Cheng Lianglun;Wang Yuncai(School of Information Engineering,Guangdong University of Technology,Guangdong Province Key Laboratory of Information Photonics Technology,Guangzhou 510006,Guangdong,China;School of Electronics and Information,Northwestern Polytechnical University,Xi'an 710072,Shaanxi,China;College of Physics and Optoelectronics,Taiyuan University of Technology,Taiyuan 030024,Shanxi,China;School of Automation,Guangdong University of Technology,Guangzhou 510006,Guangdong,China)

机构地区：[1]广东工业大学信息工程学院,广东省信息光子技术重点实验室,广东广州510006 [2]西北工业大学电子信息学院,陕西西安710072 [3]太原理工大学物理与光电工程学院,山西太原030024 [4]广东工业大学自动化学院,广东广州510006

出　　处：《光学学报》2022年第13期228-232,共5页Acta Optica Sinica

基　　金：国家自然科学基金(61927811);广东省引进创新创业团队项目。

摘　　要：提出了一种可在毫米波全波段产生超大带宽、平坦噪声的方法。利用两频率间隔不等的非相干光光频梳,基于游标效应,设计了主尺和副尺的频率间隔和非相干光线宽。仿真证明,利用所提方法可产生频率范围覆盖30~300 GHz的超大宽带、平坦的全波段毫米波白噪声。实验上通过可编程滤波器从放大自发辐射噪声中滤出两束频率间隔为游标式的梳状光,并在两个不同带宽的单行载流子光电探测器上分别实现了频率范围为130~170 GHz和280~380 GHz的毫米波白噪声,其平坦度分别低至±2.25 dB和±3.10 dB,验证了理论的正确性。A method that can generate ultra-wide and flat noise in the whole millimeter-wave band is proposed.Based the vernier effect,the frequency intervals and incoherent light widths of the main ruler and the subordinate ruler are designed by using two incoherent optical frequency combs with different frequency intervals.Simulation results show that the proposed method can generate ultra-wide band and flat full-band millimeter-wave white noise with a frequency range of 30-300 GHz.Experimentally,the amplified spontaneous emission noise is filtered out of two comb-shaped lights with a vernier frequency interval through a programmable filter,and two millimeter-wave white noises are achieved based on unitraveling-carrier photodetector with two different band widths.The frequency ranges of the two white noises are 130-170 GHz and 280-380 GHz,and the corresponding flatness are±2.25 dB and±3.10 dB,which verifies the correctness of the proposed theory.

关 键 词：非线性光学 毫米波噪声 游标效应 超宽带 平坦度 非相干光 

分 类 号：TN29[电子电信—物理电子学]