DOI:10.16136/j.joel.2023.02.0331多波长相干光注入锁定的波长跟踪自动化控制梁英,于晋龙*,李天宇,王菊,王子雄(天津大学电气自动化与信息工程学院光纤通信实验室,天津300072)摘要:本文基于全网光同步的超密集波分复用无源光网络(ultra-densewavelengthdivisionmulti-plexingpassiveopticalnetwork,UDWDM-PON),对多波长注入锁定的稳定性进行了研究,提出了一种波长跟踪控制方法:用光电探测器(photo-diode,PD)接收从激光器(slavelaserdiode,SLD)的光信号并进行滤波与检波处理,所得信号用于建立SLD参数分布模型并进行线性扫描控制。该方法经基于LabVIEW程序控制与数据采集(dataacquisition,DAQ)的仪器实验验证后,对相关驱动电路进行了模块化改良,采用基于微控制单元(microcontrollerunit,MCU)的控制,使得该控制模块具有更高控制精度、更易封装的特点,从而能更好应用于多波长光的多路注入锁定当中。本文采用主动锁模激光器(mode-lockedlaser,MLL)作为多波长光源,对双路SLD的注入锁定进行了验证与对照实验,结果表明:在相同注入条件下,采用波长跟踪控制模块的注入锁定组具有更佳的稳定性。关键词:光通信;注入锁定;半导体激光器;光频率梳中图分类号:TN24文献标识码:A文章编号:1005-0086(2023)02-0190-10Automaticwavelengthtrackingcontrolformulti-wavelengthcoher-entopticalinjectionlockingLIANGYing,YUJinlong*,LITianyu,WANGJu,WANGZixiong(LaboratoryofOpticalFiberCommunications,SchoolofElectricalandInformationEngineering,TianjinUniversi-ty,Tianjin300072,China)Abstract:Basedonthewavelengthsynchronousultra-densewavelengthdivisionmultiplexingpassiveop-ticalnetwork(UDWDM-PON),awavelengthtrackingcontrolmethodbasedonsignaldetectedbypho-toelectricdetector(PD)formulti-wavelengthopticalinjectionlockingisproposed.Specifically,thedistri-butionmodeloftheslavelaser(SLD)parameterisestablishedbyfilteringanddetectingtheoutputsig-nalfromPD,whichisusedforthelinearscanningcontrol.AftertheconfirmatoryexperimentwithLab-VIEWcontrolanddataacquisition(DAQ),thecontrolmoduleisreformedbymicrocontrollerunit(MCU)anddrivingcircuittoimprovethecontrolprecisionandencapsulation,sothatitcanbewellap-pliedinmulti-channelinjectionlocking.Two-channelinjectionlockingtestwithtwodistribute-feedbacklaseriscompar...
