光学精密工程2024，Vol.32Issue(21)：3127-3137,11.DOI:10.37188/OPE.20243221.3127
面向光纤激光的近红外超宽带波长测量
Near-infrared ultra-wideband wavelength measurement for fiber laser
摘要
Abstract
A miniaturized,high-precision wavelength measurement technology for near-infrared ultra-wideband single-frequency fiber lasers in the 0.8-2.4 μm range is proposed,based on the principle of the Michelson interferometer.The optical components utilized are compatible with the entire near-infrared band(0.8-2.4 μm).A servo motor translation stage with a maximum stroke of 50 mm,combined with a double-folded optical path design,enables an optical path difference four times the horizontal displace-ment.Signal acquisition and processing are performed using a high-speed acquisition card and a LabVIEW-based upper computer program,achieving miniaturization,high precision,and rapid measurement.A nov-el sampling number equivalent resolution method is introduced to simplify the wavelength resolution design process,establishing a direct numerical relationship between wavelength resolution and the number of sam-pling points,while allowing other parameters to be adjusted independently.Wavelength measurement ex-periments were conducted on five typical single-frequency lasers(0.8,1.06,1.55,1.94,and 2.05 μm),and the results were compared with those obtained using a commercial high-precision waveme-ter.The experimental results demonstrate the effectiveness of the proposed method,with a single mea-surement time of 1.5 s,measurement accuracies of±1.4,±1.1,±1.2,±1.2,and±1.3 pm,and a wavelength resolution consistent with the theoretical value of 0.2×10-6.These findings validate the capa-bility of this miniaturized technology to perform high-precision,rapid measurements across the full 0.8-2.4 μm near-infrared spectrum.关键词
波长测量/迈克尔逊干涉仪/近红外/超宽光谱范围Key words
wavelength measurement/Michelson interferometer/near-infrared/ultra-wide spectral range分类
数理科学引用本文复制引用
于晨昊,延凤平,杨丹丹,王鹏飞,谭中伟,任文华,冯亭,李挺..面向光纤激光的近红外超宽带波长测量[J].光学精密工程,2024,32(21):3127-3137,11.基金项目
国家重点研发计划资助项目(No.2021YFB2800900) （No.2021YFB2800900）
国家自然科学基金重点项目(No.62335001) （No.62335001）
河北省自然科学基金杰出青年科学基金项目(No.F202301024) （No.F202301024）
