基于LabVIEW的高分辨率光谱测试系统(英文)

High Resolution Optical Spectrum Testing System Based on LabVIEW

提出了一种基于LabVIEW的无源器件光谱测试方案.通过LabVIEW编程控制可调谐激光器、可编程光滤波器、光功率计和数据采集平台,获得了具有不同传递函数的光谱特性.实验中激光器的扫描速度为10nm/s,扫描范围为10nm,数据采集卡的采样速率为1MS/s,结果表明:单个器件的光谱测试可以在1s内完成,光谱分辨率可达1pm;与利用宽带光源和光谱分析仪的传统光谱测试方法相比,所提方案的测试性能可达到传统方案水平,且能显示更精细的光谱细节.该方案能应用于有高分辨率、快速和高效要求的光谱测试中.

A spectrum testing scheme of optical passive device based on LabVIEW was proposed. Relying on LabVIEW programming control over tunable laser, programmable optical filter, optical power meter and data acquisition （DAQ） platform, spectrum characteristics of various transfer functions could be obtained. When laser sweeping speed was 10 nm/s, sweeping range was 10 nm, and DAQ sampling rate was 1 MS/s, spectrum measurement for one device could be finished in 1 s, with spectrum resolution of 1 pm. Compared with conventional spectrum testing method utilizing broadband light source and Optical Spectrum Analyzer （OSA）, the performance test scheme could achieve the traditional scheme level, and got more delicate spectrum details. The experimental results show that the proposed scheme can be applied for spectrum measurement with the demand of high resolution, fast st}eed and high efficiency.