文章编号：1002-2082(2024)02-0461-06Y波导温致半波电压特性对谐振式光纤陀螺的影响苏政澄，李俊，吴凡，蓝士祺，闫博（西安飞行自动控制研究所飞行器控制一体化技术国防科技重点实验室，陕西西安710076）摘要：针对基于宽谱光源的谐振式光纤陀螺（resonantfiberopticgyroscope,RFOG）中Y波导调制器半波电压的温度影响，开展了Y波导温致半波电压特性对谐振式光纤陀螺影响的研究。建立了Y波导温致半波电压特性对基于宽谱光源的谐振式光纤陀螺系统标度因素的影响规律模型，模型表明：Y波导调制器的温致半波电压特性会导致基于宽谱光源的谐振式光纤陀螺系统的标度因素发生变化。搭建了用于宽谱光源的Y波导调制器半波电压测试系统，系统测试精度达1mV。实验测试了全温范围内Y波导的温致半波电压特性在基于宽谱光源的谐振式光纤陀螺系统中的影响，测试结果表明：Y波导调制器的半波电压与温度呈线性负相关；Y波导调制器的温致半波电压特性导致基于宽谱光源的谐振式光纤陀螺系统的标度因素的最大相对变化误差为1266.01×10−6。关键词：Y波导调制器；谐振式光纤陀螺；宽谱光；温度；半波电压中图分类号：TN253；V241.62+2文献标志码：ADOI：10.5768/JAO202445.0208003Effectoftemperature-inducedhalf-wavevoltagecharacteristicsofY-waveguidemodulatoronresonantfiberopticgyroscopeSUZhengcheng，LIJun，WUFan，LANShiqi，YANBo（NationalKeyLaboratoryofScienceandTechnologyonAircraftControl,AVICXi'anFlightAutomaticControlResearchInstitute,Xi'an710076,China）Abstract：Aimingatthetemperatureeffectofhalf-wavevoltageofY-waveguidemodulatoronresonantfiberopticgyroscope(RFOG)basedonbroadspectrumlightsource,theeffectoftemperature-inducedhalf-wavevoltagecharacteristicsofY-waveguidemodulatoronRFOGwasstudied.TheeffectlawmodelofvoltagecharacteristicsonscalingfactorsofRFOGsystembasedonbroadspectrumlightsourcewasestablished.Themodelshowsthatthetemperature-inducedhalf-wavevoltagecharacteristicsofY-waveguidemodulatorwillleadtothechangeofthescalingfactorofRFOGsystembasedonbroadspectrumlightsource.Ahalf-wavevoltagemeasurementsystemofY-waveguidemodulatorusedforbroadspectrumlightsourcewasestablished,andthemeasurementaccuracyofthesystemreached1mV.Theinfluenceofthetemperature-inducedhalf-wavevo...
