高重频窄脉宽多波长激光器可靠性分析  

Reliability Analysis of High Repetition Frequency and Narrow Pulse Width Multi-wavelength Laser Technology

作　　者：崔铮 于勇 李祚涵 李之通 潘超 CUI Zheng;YU Yong;LI Zuohan;LI Zhitong;PAN Chao(Beijing Research Institute of Telemetry,Beijing 100094,China)

机构地区：[1]北京遥测技术研究所,北京100094

出　　处：《遥测遥控》2024年第4期115-123,共9页Journal of Telemetry,Tracking and Command

基　　金：民用航天科技预先研究项目(D040107)。

摘　　要：本文对高重频窄脉宽多波长激光器的可靠性进行了分析及验证,建立了高重频窄脉宽多波长激光器的框图法模型。在初始设计阶段开展激光器的可靠性分析,定量计算了激光器各单元的可靠性结果,包括失效率λ和平均无故障工作时间(Mean Time Between Failure,MTBF),预计激光器整机的无故障工作时间为1798.8 h。为满足激光器的设计指标要求,通过选用高品质晶体、半导体激光器的Ⅰ级降额设计和电源控制的冗余设计,实现激光器的可靠性优化。经优化设计后,激光器整机的无故障工作时间达2260.9 h。搭建激光器整机对可靠性优化设计结果进行验证,验证结果表明:激光器无故障工作时间可达2400 h。This article analyzes and verifies the reliability of high repetition rate narrow pulse width multi-wavelength lasers.A block diagram method model of high repetition rate narrow pulse width multi-wavelength lasers was established,and reliability analysis of the laser was conducted at the initial design stage.The reliability results of each unit of the laser were quantitatively calculated,including failure rateλand Mean Time Between Failures(MTBF),with an expected MTBF of the entire laser system being 1798.8 hours.To meet the design requirements of the laser,reliability optimization of the laser was achieved through selecting high-quality crystals,first-level derating design of semiconductor lasers,and redundant design of power control.After optimization,the MTBF of the entire laser system was increased to 2260.9 hours.The reliability optimization design results of the laser system were validated,and the validation results showed that the laser's MTBF could reach 2400 hours.

关 键 词：高重频 窄脉宽 激光器 可靠性 框图法 

分 类 号：TN248.1[电子电信—物理电子学]