摘要
新一代光信息系统(光通信、光传感、光处理等)迫切要求光子器件能够对光信号进行多维度(幅度、相位、偏振等)和高精细操控,对这些光子器件的多维光谱响应进行精确测量已成为相关领域创新和取得突破的前提。然而,目前国内外尚无光矢量分析仪表能测量具有飞米级别频谱操控精度光器件的频谱响应。一种实现超高分辨率光矢量分析的有效途径是:采用微波光子技术将粗粒度的光域波长扫描转换成超高分辨率的微波频率扫描,辅以高精度电幅相检测,进而实现光器件多维光谱响应的超高分辨率测量。然而,该光矢量分析技术仍面临测量范围较窄、动态范围较小和测量误差较大这三个关键挑战。深入分析了这三个关键挑战,并讨论相关的测量范围拓展技术、动态范围增强技术和测量误差消除技术。此外,探讨了该技术的未来发展趋势。
The development of new generation optical infor- mation system （i. e. optical communication, optical sensing, optical signal processing, etc. ） highly desires the optical com- ponents and devices having capability for finely manipulating the optical spectrum by fro-level in multiple dimensions （i. e. magnitude, phase, polarization, etc. ）. Only the frequency re- sponses of such optical components and devices are accurately measured, the innowltion and breaklhrough in the related fields can he achieved. However, there is no such instrumenl corn mercially available. （）ne of the promising solutions to achieve high resolution optical vector analysis （（）VA） is microwave phmonics （MWP）, in which, by employing 1he electrical-to-op tical and optical-to-electrical conversions, high-resohHion fre queney sweeping and accurate magnitude and phase extraelion are realized using lhe mature and high resohltion microwave technologies. Although lhe MWP based OVA is attradive due to its uhra-high resolution, there are slill three key challenges, i.e. narrow measurement rang（？, small dynamic range and con- siderahle measurement errors. In this paper, lhecomprehensive analysis on these challenges are given and the methods to extend the measuremenl range, enhance the dynamic range and im prove the measurement accuracy are performed and discussed. Possit）le future research directions arc also discussed.
作者
潘时龙
薛敏
卿婷
李树鹏
PAN Shilong XUE Min QING Ting LI Shupeng(College of Electronic and Information Engineering, University of Aeronautics and Astronautics, Nanjing 210016,＇ CHN)
出处
《光电子技术》
CAS
2017年第3期147-162,177,共17页
Optoelectronic Technology
基金
国家重大科研仪器研制项目(No.61527820)
国家重大科学仪器设备开发重点专项(No.2017YFF0106900)
国家自然科学基金青年科学基金(No.61705103)
关键词
光矢量分析
光单边带调制
微波光子学
频谱响应测量
超高分辨率
oplical vector analysis
opticalmodulation
microwave photonics
frequencyurement
uhra high resolution
